Font size
WorksheetsNATIONAL QUIZ QUESTIONS FOR SCIENCE UNDERGRADUATES SCHOLARSHIP
Total questions: 52
Worksheet time: 58mins
name the group that has a single bond
alkenes
alcohols
alkanes
ethers
the name of this compaund C4H10
METHANE
HEXENE
BUTANOIC ACID
BUTANE
molecules with double/tripple bond
carbocilic acids
alkynes
unsaturated fats
saturated fats
the MP and BP increases as the molecular structure increases
hydrocarbons
ethers
ketones
the type of reaction that occur in alkenes
elimination
substitution
addition
SELECT ONE DISTINGUISHED PROPERTY FOR ACIDS.
CHANGE THE COLOR OF LITMUS PAPER INTO RED.
HAVE A BITER TASTE.
THEIR AQOUS SOLUTIONS DO NOT CONDUCT ELECTERICITY.
THEY ARE USUALLY SOLIDS.
pH below 7.35 is
Alkalosis
Acidosis
Zackosis
Ketone Bodies
Which option is correct? Shifts between the ECF and the ICF is called "osmosis / diffusion"
Osmosis
Diffusion
True or Falce: When pH is above 7.45 it is called Alkalosis
True
False
If you decrease the H+ in a solution the pH will _____________ and the solution will become more ________________
increase, basic
decrease, acidic
increase, acidic
decrease, basic
Objective #13
This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the father (square) in generation 1?
Aa
AA
aa
A?
Objective #13
This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the mother (circle) in generation 1?
Aa
AA
aa
A?
Objective #13
This is a pedigree that follows blue eyes which is a recessive trait. What is the phenotype of the mother (circle) in generation 1?
Brown
Blue
1 blue, 1 brown
Objective #13
This is a pedigree that follows blue eyes which is a recessive trait. What are the genotypes of the parents (4&5) in generation 2?
Aa, AA
aa, aa
AA, AA
Aa, Aa
Objectives - #4, #5, & #13
This is a pedigree that follows blue eyes which is a recessive trait. If parents in generation 1 had another child, what would the chance be that the child would have blue eyes?
50% (2/4)
75% (3/4)
25% (1/4)
100% (4/4)
95-98% of the animal kingdom
vertebrate
invertebrate
multicellular heterotrophs that sexually reproduce
IS this a cell from an ANIMAL?
No, because it has a cell wall.
No, because animal cells are bigger and have a thicker cell wall.
Yes, because it has mitochondria and a nucleus.
In many cases, insecticides have stopped being effective because new generations of insects
developed mutations from the chemicals.
inherited resistance genes.
are eaten by predators.
haven't been exposed to the insecticide.
Which important role do millipedes play in an ecosystem?
predator/pest control
decomposer/nutrient cycler
pollinator
ecosystem engineer
Initiation codon of prokaryotes for protein synthesis represents amino acid
Methionine
Formylated methionine
Arginine
Lysine
The circular and double stranded DNA occurs in
Golgi body
Mitochondria
Nucleus
Cytoplasm
A DNA molecule in which both strands have radioactive thymidine is allowed to duplicate in an environment containing non-radioactive thymidine. What will be the exact number of DNA molecules that contains the radioactive thymidine after three duplications
One
Two
Three
Four
In bacteria, catalytic RNA is found in
50S subunit of ribosome
60S subunit of ribosome
30S subunit of ribosome
40S subunit of ribosome
Which histone protein is not a part of nucleosome:-
H2A
H2B
H3 & H4
H1
In a population that is in equilibrium, 64% of its individuals have genotype rr. What is the frequency of R allele in the population?
0.36
0.2
0.04
0.4
1)In the United States, one out of approximately 10,000 babies is born with Phenylketonuria disorder. Approximately what percent of the population are heterozygous carriers of the recessive Phenylketonuria (PKU) allele?
1.98%
19.8%
99%
0.01%
Which of the following is the correct equation for BeerLambert law?
E = A / LC
C = E / AL
A = ELC
L = ACE
A bead sliding on a uniformly rotating wire is ..... Constraint
Holonomic
Non holonomic
Rhenomous
Sclerenomous
The number of independent ways in which a mechanical system can without violating any constraints which may be imposed on the system is called
Number of freedom
Holonomic
Degree of freedom
Constraint
The number of degree of freedom for particle in space has
1
2
3
4
The Lagrangian function L is expressed as ...
V - T
T + V
T - V
T / V
A particle is moving freely in space. Now if the same particle is constraint to move in a one direction then decrease in its degrees of freedom is...
1
2
3
4
The eigen value for the eigen function e6x, operated by d2/dx2 is
(a)
A particle is confined in one-dimensional box with impenetrable walls at x ± a. Its energy eigenvalues is 2eV. Then the lowest possible energy of particle is
4 eV
2 eV
1 eV
0.1 eV
The common between classical and quantum mechanical fundamental distribution function is :
they all depend upon the quantity that define state only
they all depend only upon the energy of the state
they all depend both on energy and quantity defining state
nothing is common in them
Calculate the de Broglie wavelength of a particle travelling at a velocity of 107 cm/s?
7.7 Å
72.7 Å
0. 727 Å
0.0727 Å
Compute the eigen value for the eigen function e6x, operator d2/dx2
16
36
6
0
The location of an electron is uncertain along the x-axis by 10Å. What is the minimum uncertainity in the electrons momentum component along the x-axis?(h=6.63×10-34Js)
0.527×10-25kgm/s
5.27×10-25kgm/s
0.0527×10-25kgm/s
52.7×10-25kgm/s
Calculate the fourth energy level of an electron in an infinite potential well of width 10 Å?
E4=6.028eV
E4=3.028eV
E4=2.028eV
E4=4.028eV
The brakes applied to a running train produce an acceleration of 0.6 m/s2 in a direction opposite that of motion. If train takes 60s to stop after application of brakes, calculate distance travelled before coming to rest.
1080 m
1200 m
1500m
2156 m
The formula CH3 can represent an anion, a cation or a free radical. Species with molecular formula CH3 can act as an electrophile, a free radical or a nucleophile depending on the number of outer shell electrons on the central carbon atom. How many outer shell electrons must be present for CH3 to act in these different ways ?
A
B
C
D
Which diagram gives the skeletal formula of
2-chloropentan-3-ol ?
A
B
C
D
Which reaction is not an electrophilic addition ?
A
B
C
D
Bromine reacts with ethene to form 1, 2-dibromoethane.
What is the correct description of the organic intermediate in this reaction ?
It has a negative charge
It is a free radical
It is a nucleophile
It is an electrophile
During the bromination of methane, the free radical CH30 is generated. A possible terminating step of this reaction is the formation of C2H6 by the combination of 2 free radicals. What could be produced in a terminating step during the bromination of propane
Which pair of homologous series have the same C:H ratio in their general formula
1) Aldehydes and Ketones
2) Carboxylic acids and esters
3) Alkenes and Ketones
A
B
C
D
Which equation is a propagation step in the conversion of trichloromethane into tetrachloromethane by reaction with chlorine in the presence of ultraviolet light?
CHCl3 + Cl2 ⟶ CCl4 + HCl
●CCl3 + ●Cl ⟶ CCl4
CHCl3 + ●Cl ⟶ CCl4 + ●H
●CCl3 + Cl2 ⟶ CCl4 + ●Cl
An organic compound is found to contain 40.0% carbon, 6.7% hydrogen and 53.3% oxygen.Which of the following compounds could this be?
Ethanol
Ethanoic acid
Methanol
Methanoic acid
Which one of the following mechanisms is not involved in the reaction sequence below?
CH3CH3 → CH3CH2Cl → CH3CH2OH → CH2=CH2 → CH3CH2Br
electrophilic addition
electrophilic substitution
nucleophilic substitution
free-radical substitution
