Which type of teeth is mainly involved in grinding of food?

Respiratory surface in humans is:

If a person is dehydrated, then which of the following will be stimulated to produce ADH?

Stimulation of parasympathetic nervous system will cause:

During Parkinson’s disease, which of the following is not observed:

Testosterone production in males starts:

The correct sequence of spermatogenetic stages leading to formation of sperm in a mature human testis is:

Uterus gains maximum thickness during:

It is a dense connective tissue that surrounds entire muscle:

According to sliding filament theory, when muscle fibers are stimulated by nervous system, which of the following changes occurs?

During Addison’s disease:

Which of the following hormone is an amino acid derivative?

Tricuspid valve allows flow of blood from:

Skin and mucous membranes are part of the body defense system and they form:

Which of these structures is formed from mesoderm?

A function that is made possible only by stomach in alimentary canal is:

Which of the following is bone dissolving cell?

This is not a sex linked disease:

Antibodies are produced by:

Random, uncontrolled activity of some cells in the brain leading to chaotic activity in both sensory and motor nerves causes patients of _______________ to see and hear different strange things.

Part of hind brain responsible for the balance and equilibrium of body is called:

Decrease of FSH and increase of estrogen cause pituitary gland to secrete:

Longest bone in the human skeleton is:

In pelvic region of human body, sacrum is formed by the fusion of:

___________ hormones are called fight and flight hormones as they prepare an organism to face stressful situation.

The type of immunity in which antibodies are passed from one individual to another is called:

In antibody molecule, two heavy and two light chains are bonded by:

Food enters from stomach into small intestine through:

____________ are the part of gastric gland which produce hydrochloric acid.

Chordae tendineae are fibrous cords attached with:

Bicuspid valve controls the flow of blood from:

Carboxyhaemoglobin (10-20%) is formed when CO₂ combines with:

Restriction endonucleases cleave the ___________ of duplex DNA.

Liver is not involved in synthesis of:

Which of the following blood vessels will have more urea as compared to others?

Following is not a part of male reproductive system:

Site for attachment of calcium ions is present on:

These muscles are striated and involuntary:

Strictly speaking, immune system is composed of:

First part of large intestine is

Gill pouches in vertebrates represent

For evolution, the important requirement is

Epithelial cells of villi are constantly replaced by cells produced in

Erypsin acts on ________ to convert it into _______

Larger dust particles are entrapped in

Bronchioles are mainly made up of

Total percentage of all blood cells out of whole blood is

Which component of blood plasma is very important to maintain pH of blood?

Which of the following organic nutrient is usually not present in blood?

Phagocytes includes

Antibodies will destroy bacteria by

Vaccination is type of

Passive immunity is

Gonads in human males

Function of sertoli cells is to

Epididymis is actually

Ovum after fertilization enters into

Collagen is not

Replacement of cartilage with bone in early age is the function of

Axial skeleton in humans consists of

Pick a wrong statement about the rib cage

Branched and interconnected fibers are found in

Hormones produced by gonads belong to which class of hormones

Anterior pituitary is also known as master gland because

All of following factors stimulate release of ACTH except

A hormone that is sometimes inappropriately known as LTH

A gland that is involved in maintaining circadian rhythms is

Formyl group can occur

The number of functional groups in the following hypothetical compound are

1-Butyne reacts with water in the presence of dilute H₂SO₄ and 1% HgSO₄ forming

Benzene reacts with benzoyl chloride in the presence of AlCl₃ to give

Which of the following hydroxide of group of IA is more soluble in water

Magnesium burns in air to form

Sodium does not show +2 oxidation state because of its

Hydrogen gas is evolved during reaction of Na metal with all except

Which of the following pair of ions gives coloured solution of their complexes?

Copper acetylide reacts with ___________ to regenerate acetylene

Carboxylic acids are dehydrated on heating strongly in the presence of ______

Minimum binding energy is possessed by

Reactivity of alkenes is due to

What are X and Y in the reaction

Which alcohol is less acidic

Picric acid is formed by

When CO₂ is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is

Which of the following is correct general formula for ketones

In the body, nucleic acids occur as a part of conjugated proteins called

Oxidation of ketone resists in the presence of

The reagent used for decarboxylation of carboxylic acids is

Aldol condensation reaction is carried out by

Elements in the periodic table are classified into four blocks. This classification is based upon

Which one of the following compound is not organic in nature

If 1-chloropropane and 2-chloropropane are treated with alcoholic KOH, it gives

Correct name of CH₂(OH)CH(OH)CH₂(OH) is

Which of the following alkaline earth metals has highest melting point

The complete combustion of one mole of C₆H₁₄ will produce how many moles of CO₂

The haloalkane which does not give β- elimination is

Which is NOT periodic property?

Which of the following alkali metals can form superoxide on reaction with oxygen?

The elements of ______ group has highest electrical conductivity

Which one of the following does not react with steam?

If a complex of chromium absorbs red light in wavelength region of 650 – 700nm

then it looks like to be

The geometry and hybridization of [Co(NH₃)₆] complex

A transition element X has configuration [Ar]3d⁴ in its +3-oxidation state, it

atomic number will be

The number of d-electrons of Cr in [Cr(NO₂)₆]^3- ions is

The number of sp³ hybridized carbons in 1-pentene-4-yne are

Alkanoic acid and alkyl alkanoateare _______ isomer of each other

Benzene does not undergo addition reactions easily because

Benzene reacts with propanoylchloride in presence of AlCl₃ to give

IUPAC name of vinyl alcohol is

The correct melting point order is

Collagen is a fibrous protein present most abundantly in

An organic compound Y when treated with NaBH₄ forms Z, which gives positive

iodoform test. The compound Y is

Butanone on oxidation with K₂Cr₂O₇ / H₂SO₄ forms

Aldehydes and ketones react with ammonia derivative to form compounds containing imine functional group. This is an example of

Which one of the following compounds is difficult to oxidize?

Acetone and formaldehyde can be distinguished by means of

__________ when strongly heated with Fehling’s reagent gives brick red precipitate of cuprous oxide

Which of the following is a fatty acid?

If ethyl butyrate is added to a liquid, it will develop a flavor of

Which of the following derivative of ethanoic acid is least reactive?

When phenol reacts with ethanoyl chloride in the presence of a base it forms______

When hydrogen atom is in its first excited level its radius is.

In the nth orbit, the energy of an electron E_n=-13.6/n² eV for hydrogen atom. The energy required to take the electron from first orbit to second orbit will be

X-rays of λ=1A° have frequency

The diagram shows the electric field lines in a region of space containing two small

charged spheres (Y and Z). Then

A cell of emf 5V and internal resistance 1 Ω will give maximum power output to

A charged particle enters a magnetic field such that the direction of initial velocity is different from the direction of the field. Which of the following characteristics of the particle will not change with time?

A conductor of length 1m carrying current of 1A is placed parallel to a magnetic field of 1 Gauss. The magnetic force acting on the conductor is

From a metal surface violet light causes photo emission but blue do not. If sodium light is used then photo electrons

The cesium coated oxidized silver emits electrons for

A generator coil rotates through 60 revolutions each second. The frequency of the emf is.

If a charge particle is placed one by one at point A, B and C then at which point it will experience a larger force.

Three identical charge are placed at the corners of an equilaterd triangle. If forces

between any two charges is F, Then the net force on each will be

Equipotential planes are

If 2 bodies are oppositely charged with 400µC and 200µC, the distance between them in the air is 0.5 m. The force between the bodies should be

Find capacitance across AB:

If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?

Calculate the energy in the 5 ohm resistor in 20 seconds.

Which of the following correctly describes the magnetic field near a long straight wire?

The strength of electromagnet can be increased by introducing a soft iron core

For a cell, the graph between the potential difference (V) across the terminals of the cell and the current (I) drawn from the cell is shown in the figure.

The e.m.f. and the internal resistance of the cell are

The ripple factor indicates the number of ripples in the

de-Broglie wavelength of a body of mass 1 kg moving with velocity of 2000 m/s is

If the angular speed of rotation of an armature of alternating current generator is

doubled, then the induced electromotive force will be:

If a unit charge is taken from one point to another point over an equipotential surface, then___________

A cooler of 1500 W, 200 volt and a fan of 500 W, 200 volts are to be used from a

household supply. The rating of fuse to be used is

If the temperature is increased by 3°C, the value of temperature co-efficient of

resistivity.

The energy of a charged capacitor resides in

The dielectric constant k of an insulator cannot be

A charged particle is projected into a region of uniform and parallel, E and B fields. The force on the particle is:

Velocity selector is a device used to determine the velocity of charge particles, it works with

In given figure, the force on arm BC is:

An α −particle is moving through a current carrying solenoid along its axis. Magnetic force acting on α −particle is

If a charge on a capacitor is doubled, then its capacitance will be

A capacitor of capacitance C has charge Q and stored energy is E. If the charge is

increase to 2Q. The stored energy will

Two bulbs of 500 W and 300 W are manufactured to operate on a 220V line. If their resistances are R₁ and R₂ respectively, the value of R₁/R₂ is,

What carries current in an electrolyte?

The frequency of direct current is:

A metallic sphere of diameter 30 cm, carries a charge of 600 $$\mu$$  C. Find electric field

intensity at surface of sphere?

A step-down transformer reduces the supply voltage from 220 V to 11 V and increase the current from 6 A to 100 A. Then its efficiency is

A certain radioactive nuclide of mass number ‘x’ decay by β–emission and α–emission to a second nuclide of mass number ‘t’, which of the following correctly relates ‘x’ and ‘t’?

Mass of alpha particle is

Among the following four spectral regions, in which of them, the photon has the highest energy in?

What will be the number of photons emitted per second, if the power of the radio

transmitter is 15 kW and it operates at a frequency of 700 kHz?

If the intensity of incident radiation in a photo-cell is increased, how does the stopping potential vary?

In terms of Rydberg's constant R, the wavelength of the first Balmer line is

The half-life of a radioactive substance is:

Possible units for the disintegration constant λ are:

In photo electric effect wavelength of incident photon is λ while threshold wavelength of metal surface is λ_o. The K.E^_max of ejected electron is given b

The quanta of energy possessed by $$\gamma$$  -radiation is of the order of

Mass No. of a nucleus will change only if it emits

Sterilization of surgical instruments medical supplies and bandages can be done by

exposing them to a beam of

Negative Beta particles ionize an atom

In a radioactive phenomenon observation shown in figure where α-deviates lesser than β in some electric or magnetic field (not shown in the figure). What is the reason of less deviation of α?

Per year safe limit of radiation exposure is

Choose the correct option:

Choose the correct option:

Choose the correct option:

Choose the correct option:

Identify the underlined phrase:

We were prevented from seeing the prisoner

Read the following passages and answer the questions given below.

Mom walked into the kitchen to put the grocery bags down on the counter when she noticed shattered glass from the picture window all over the living room floor and a baseball not far from there. “I’m going to kill you, Tommy!” Mom yelled to herself as she realized that Tommy’s shoes were gone.

What happened to the window?

Read the following passages and answer the questions given below:

Every day after work Paul took his muddy boots off on the steps of the front porch. Alice would have a fit if the boots made it so far as the welcome mat. He then took his dusty overalls and threw them into a plastic garbage; Alice left a new garbage bag tied to the porch railing for him every morning.

What type of job does Paul do?

Choose the correct voice.

The crew paved the entire stretch of highway.

Choose the correct voice.

The Muslims must observe fasts.

Choose the correct voice.

Do not catch this bird.

Choose the Correct Narration:

He said, “Let us start now.”

Choose the Correct Narration:

The teacher says, “Always speak the truth.”

Choose the Correct Narration:

The scientist said, “The earth revolves around the sun.”

Identify the underlined Part of speech:

I hope you get well again soon.

Choose the best option to complete the sentence:

Ozone in the Earth’s atmosphere _______ living organisms from damaging ultraviolet radiations.

Spot the Error:

One of the first records of famine was carved over granite by an Egyptian Pharaoh.

Spot the Error:

For a long time there was only the sound of the wind at the late afternoon.

Choose the Correct Spelling

In the overall economy of Pakistan, agriculture is the largest sector of economic activity. It plays a crucial role in the country's economic development by providing food to its people and raw materials to industry. It accounts for the largest share to the national income. The share of the various agricultural commodities, animal husbandry and ancillary activities has been more than 40 percent since independence. During the decade of the fifties, it actually contributed about half of the national output.

Agriculture is the mainstay of Pakistan economy.

The space exploration has been done mainly by using unmanned satellites called space probes containing a large variety of latest scientific instruments on board. These space probes have provided us the close up pictures and other data about planets and other bodies in the outer space. The climax of the intensive American space program came when Neil Armstrong became the first man to set foot on the moon on July 20, 1969. Originally, the artificial satellites were launched for studying the upper atmosphere of earth.

Neil Armstrong was the first man to go into space.

Statement:

Every citizen of a country should pay tax to the Government.

Courses of action:

The government should aware and educate people about income tax.

II) The government should take strict action against income tax fraudulent.

In spite of the Principal's repeated warnings, a child was caught exploding crackers secretly in the school.

Courses of Action:

I. All the crackers should be taken away from the child and he should be threatened not to do it again.

II. The child should be severely punished for his wrong act.

I. It is the aim of the city's civic authority to get the air pollution reduced by 20% in the next two months.

II. The number of asthma cases in the city is constantly increasing.

Statements:

I. The government has decided to take up the irrigation projects on war footing and complete all of them in the next two years.

II. Scientists predicted very low rainfall for the next seven years.