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1.

Acid + Metal gives

a)

Salt + Hydrogen Gas

b)

Salt + Water

c)

Metal Oxide + Oxygen

d)

Carbon diOxide + Heat 🔥

2.

Metal (hydrogen)carbonate + Acid gives

a)

Salt + Carbon diOxide + Water

b)

Precipitate + Water

c)

Salt + Hydrogen gas + Heat 🔥

d)

Salt + Oxygen + Hydrogen

3.

Acid + Base gives

(Neutralization reaction)

a)

Salt + Water

b)

Salt + Heat 🔥

c)

Salt + Carbon diOxide

d)

Salt + Hydrogen

4.

Metal Oxide + Acid gives

a)

Salt + Water

b)

Metal + Oxygen + Hydrogen

c)

Salt + Oxygen + Hydrogen

d)

Precipitate + Water 💦 + Heat 🔥

5.

Non-metallic Oxide + Base gives

a)

Salt + Water

b)

Non-Metal + Oxygen + Hydrogen

c)

Salt + Oxygen + Hydrogen

d)

Precipitate + Water 💦 + Heat 🔥

6.

Acids release ions when disassociated in water, these ions are:

a)

H⁺

b)

OH^-

c)

Na⁺

d)

Cl^-

7.

Bases release ions when disassociated in water, these ions are:

a)

H⁺

b)

OH^-

c)

Na⁺

d)

Cl^-

8.

pH scale looks like:

a)

b)

c)

d)

None of the above

9.

pH of Acids, pOh of Bases

a)

>7, <7

b)

<7, <7

c)

>7, >7

d)

<7, >7

10.

Which of the following are Naturally occurring acids:

(Multiple correct)

a)

Tartaric Acid

b)

Citric Acid

c)

Oxalic Acid

d)

Acetic Acid

11.

(a)Sodium Hydroxide________ (i)CaOCl₂

(b)Bleaching Powder_______ (ii)NaHCO₃

(c)Baking Soda______________ (iii)NaOH

(d)Washing Soda______ (iv)CaSO₄.1/2H₂O

(e)Plaster of Paris __________ (v)Na₂CO₃

a)

(a)-(iii), (b)-(i), (c)-(ii), (d)-(v), (e)-(iv)

b)

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv), (e)-(v)

c)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii), (e)-(i)

d)

(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv), (e)-(v)

12.

Metal + Oxygen

a)

Metal Oxide

b)

Won't react

c)

Metal carboxide

d)

Metal Oxide + Hydrogen

13.

Metal + Water

a)

Metal Oxide + Hydrogen

b)

No reaction 💦

c)

Metal + Hydrogen + Oxygen

d)

Metal Hydroxide

14.

Metal Oxide + Water

a)

Metal Hydroxide

b)

Metal + 🔥 + 💦

c)

Metal Oxide + Hydrogen

d)

None of these

15.

1)Sodium

2)Potassium

3)Calcium

4)Magnesium

5)Aluminum

6)Iron

7)Zinc

8)Lead

9)Hydrogen

10)Copper

11)Mercury

12)Silver

13)Gold

Which elements should be interchanged to form the correct reactivity series?

a)

(1) and (2), (6) and (7)

b)

(3) and (5), (12) and (13)

c)

(1) and (3), (10) and (11)

d)

The series is correct

16.

Which bond does Carbon form?

a)

Ionic

b)

Covalent

c)

Co-ordinate

d)

It doesn't react

17.

What are the allotropes of Carbon?

(Multiple correct)

a)

Diamond

b)

Graphite

c)

Fullerene

d)

Ethanoic Acid

18.

Alcohol + Carboxylic Acid

a)

Ester

b)

Ether

c)

Both

d)

None

19.

Modes of Asexual Reproduction are:

a)

Fission, Fragmentation, Regeneration, Budding, Vegetative Propagation, Spore Formation

b)

Fission, Fragmentation, Regeneration, Budding, Budding, Vegetative Propagation, Self-pollination

c)

Fission, Regeneration, Budding, Budding, Vegetative Propagation, Spore Formation, Cross-pollination

d)

Self-pollination Cross-pollination

20.

Example of Fission:

(a)

21.

Fragmentation:

(a)

22.

Regeneration:

(a)

23.

Budding:

(a)

24.

Spore Formation:

(a)

25.

(a)Ovary______________________(i)Seed

(b)Ovule_________________(ii)Fruit Wall

(c)Ovary Wall_________________(iii)Fruit

a)

(a)-(iii), (b)-(i), (c)-(ii)

b)

(a)-(ii), (b)-(iii), (c)-(ii)

c)

(a)-(i), (b)-(ii), (c)-(iii)

d)

(a)-(iii), (b)-(ii), (c)-(i)

26.

Male reproductive part in flowers

(a)

27.

Female reproductive part in Flowers

(a)

28.

Unisexual Flowers:

(multiple correct)

a)

Papaya

b)

Watermelon

c)

Rose

d)

Mustard

29.

Number of Male Gametes in one Pollen Grain

(a)

30.

Are Male Gametes motile

a)

Yes

b)

No

31.

Why did Mendel chose Pysium sativum?

4 lines

32.

Phenotypic ratio of Monohybrid cross

(a)

33.

Genotypic ratio of Monohybrid cross

(a)

34.

Phenotypic ratio of Dihybrid cross

(a)

35.

a)

Punnett Square

b)

Dihybrid Cross ➕

c)

Male ♂ Female ♀ cross ➕

d)

I dont know

36.

Recessive Traits only show up when:

a)

Homozygous Condition

b)

Heterozygous Condition

37.

a)

Concave Mirror

b)

Convex Mirror

c)

Concave Lens

d)

Convex Lens

38.

a)

Convex Lens

b)

Concave Lens

c)

Concave Mirror

d)

Convex Mirror

39.

Do you remember this?

a)

Yes

b)

No

40.

Mirror Formula:

a)

$\left(1\div v\right)+\left(1\div u\right)=\left(1\div f\right)$

b)

$\left(1\div v\right)-\left(1\div u\right)=\left(1\div f\right)$

c)

$\left(1\div u\right)-\left(1\div v\right)=\left(1\div f\right)$

d)

None of these

41.

Lens Formula

a)

$\frac{1}{v}+\frac{1}{u}=\frac{1}{f}$

b)

$\frac{1}{v}-\frac{1}{u}=\frac{1}{f}$

c)

$\frac{1}{u}-\frac{1}{v}=\frac{1}{f}$

d)

None of these

42.

Do you know Sign Convention?

a)

Yes

b)

No

43.

Snell's Law:

(multiple correct)

a)

$\frac{\sin i}{\sin r}=n$

b)

$\frac{\sin r}{\sin\ i}=n$

c)

$\frac{\sin\ i}{\sin\ r}=\frac{u_2}{u_1}$

d)

$\frac{\sin\ i}{\sin\ r}=\frac{u_1}{u_2}$

44.

Convex Lens are:

a)

Converging

b)

Diverging

45.

Do you know this?

a)

Yes

b)

No

46.

Power of lens and its S.I unit

a)

$\frac{1}{f\left(in\ m\right)}$ , D (Diopter)

b)

$\frac{1}{f\left(in\ cm\right)}$ , no unit

c)

$\frac{100}{f\left(in\ m\right)}$ , D (Dipter)

d)

All of these

47.

(a)

48.

Ohm's Law:

a)

V=IR

b)

I=VR

c)

R=VI

d)

V=I²R

49.

Factors Affecting Resistance:

(multiple correct)

a)

Length

b)

Cross-Sectional area

c)

Nature of Material

d)

Temperature

e)

Surroundings of Material

50.

The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 120 V?

(a)

51.

Resistances in Series are:

a)

Added

b)

Subtracted

c)

Multiplied

52.

Resistances in Parallel:

a)

$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...\ +\frac{1}{R_n}$

b)

$R_{eq}=R_1+R_2+R_3+...+R_n$

c)

$R_{eq}=R_1+\frac{1}{R_2}+R_3+...\left(if\ n\ is\ odd\right)$

d)

$R_{eq}=\frac{1}{R_1}+R_2+\frac{1}{R_3}...\left(if\ n\ is\ even\right)$

53.

General Formula of Alkane

a)

C_nH_2n+2

b)

C_nH_2n

c)

C_nH_2n-2

d)

None

54.

General Formula of Alkene

a)

C_nH_2n+2

b)

C_nH_2n

c)

C_nH_2n-2

d)

None

55.

General Formula of Alkyne

a)

C_nH_2n+2

b)

C_nH_2n

c)

C_nH_2n-2

d)

None

56.

Heat:

(Multiple correct)

a)

$I^2RT$

b)

VIT

c)

$\frac{V^2T}{R}$

d)

VRT

57.

1KwH=

a)

$3.6\times10^6\ j$

b)

$3.6\ \times\ 10^{5\ }j$

c)

$36\times10^{6\ }j$

d)

None

58.

Find the current flowing through the circuit

a)

1A

b)

2/3A

c)

3/2A

d)

0.4A

59.

R_eq

a)

$8\Omega$

b)

$9\Omega$

c)

$12\Omega$

d)

Cant do it

60.

Find Current

(a)

61.

Magnetic Intensity is proportional to:

a)

Magnetic Field Lines

b)

1/Magnetic Field Lines

c)

Temperature

d)

Strength of Magnet

62.

Intensity of Magnetism is maximum at

a)

Poles

b)

Inside the Magnet

c)

At the perpendicular bisector of Magnet

d)

It is constant

63.

Direction of Magnetic Field line by a straight current-carrying wire is given by which rule

(a)

64.

Electric Motor converts

a)

Electric energy to Mechanical energy

b)

Mechanical energy to Electric energy

c)

Magnetic Energy to Mechanical Energy

d)

None

65.

Parts of Electric Motor

(multiple correct)

a)

Brushes

b)

Split Rings

c)

Axle

d)

Magnets

e)

Diamond Brushes🔹

66.

How is current produced in a coil by a magnet, what is this process called?

a)

By providing relative motion between the two, electromagnetic induction

b)

By moving the magnet only, electromagnetic induction

c)

By moving the coil only, electromagnetic induction

d)

By moving nothing, getting electromagneticly lol

67.

The direction of induced current

a)

Favors change in MFlL

b)

Opposes change in MFL

c)

Goes Clockwise

d)

Goes Anti-Clockwise

68.

MFL goes

(multiple correct)

a)

North to South outside the Magnet

b)

North to South inside the Magnet

c)

South to North outside the Magnet

d)

South to North inside the Magnet

69.

The amount of energy transferred from one level to another in a food chain

a)

10%

b)

20%

c)

1%

d)

15%

70.

Amount of Sun's energy captured by plants

a)

1%

b)

10%

c)

20%

d)

15%

71.

A male child will have

a)

Y chromosome from male and X chromosome from female

b)

X chromosome from male and X chromosome from female

c)

X chromosome from male and Y chromosome from female

d)

Y chromosome from male and Y chromosome from female

Science

Total questions: 71

Worksheet time: 59mins

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