Presbyopia is corrected by

(a)

Concave

(b)

Focal

(c)

Convex

(d)

Cylindrical

An inverted image of the object is formed in _____

(a)

Simple microscope

(b)

Compound microscope

(c)

Astronomical microscope

(d)

Both b & c

Gas laws state the relationship between _____ properties of gas.

(a)

pressure

(b)

volume

(c)

Temperature & mass

(d)

all the above

If resistance decreases, then current will

(a)

increase

(b)

double

(c)

decrease

(d)

constant

A bird sitting on an uninsulated wire carrying a current feels quite safe because

(a)

the bird is non-conductor of electricity

(b)

resistance of the bird is very large

(c)

there is a large potential difference between bird and wire

(d)

there is no potential difference between bird and wire

Sound energy passing per second through a unit area held perpendicular is called.

(a)

intensity

(b)

frequency

(c)

amplitude

(d)

quality

The coolant used in fast breeder reactor is

(a)

ordinary water

(b)

heavy water

(c)

liquid sodium

(d)

boron carbide

Atomicity of Chlorine and Neon is

(a)

Mono atomic and mono atomic

(b)

Mono atomic and diatomic

(c)

Diatomic and diatomic

(d)

Diatomic and mono atomic

Atomicity of Sulphur is

(a)

1

(b)

2

(c)

4

(d)

8

Potassium belongs to ________ period

(a)

First

(b)

Second

(c)

Third

(d)

Fourth

Electronegativity values are based on ______________

(a)

bond energy

(b)

electron affinity

(c)

ionisation energy

(d)

all the above

The chief ore of copper is ________

(a)

Chalcopyrite

(b)

Copper glance

(c)

Cyprite

(d)

Ruby copper

Hygroscopic substances are used as __________ agents.

(a)

oxidizing

(b)

reducing

(c)

decarboxylating

(d)

drying

Non-aqueous solvent is ____________

(a)

benzene

(b)

ether

(c)

CS₂

(d)

All the above

The product formed when calcium oxide reacts with water is

(a)

Slaked lime

(b)

Carbon dioxide

(c)

Calcium oxide

(d)

Oxygen gas

Formation of ammonia from nitrogen and hydrogen is an example of __________ reaction.

(a)

Thermal decomposition

(b)

Combination

(c)

Precipitation

(d)

Displacement

The value of ionic product of water at 25°C is ____________

(a)

1.00 x 10¹⁴

(b)

1.00 x 10^-14

(c)

1.00 X 10⁴

(d)

1.00 X 10^-4

Cyclobutane is an example of ______________ compounds.

(a)

a cyclic

(b)

cyclic

(c)

aromatic

(d)

alicyclic

Alcohols + Acids  Esters. This reaction is ___________

(a)

Ester hydrolysis

(b)

Esterification

(c)

Dehydrogenation

(d)

Oxidation

Which of the following is formed when soap water acts on clothes to remove dirt or grease?

(a)

acetic acid

(b)

Micelle

(c)

Ethyl alcohol

(d)

all the above

The urinogenital canal of female rabbit is formed by union of_________

(a)

urethra and vagina

(b)

urinary bladder and urethra

(c)

cowper's gland and urinary bladder

(d)

urinary bladder and vagina

___________is the main circulatory medium in the human body.

(a)

Blood

(b)

Water

(c)

Lymph

(d)

Plasma

A human brain is formed of ______ main parts.

(a)

three

(b)

four

(c)

two

(d)

six

Auxins were identified by ______

(a)

Darwin

(b)

Kogi

(c)

Went

(d)

Funk

_____ promotes the development and enlargement of all tissues of the body.

(a)

GH

(b)

TSH

(c)

GTH

(d)

ACTH

The deficiency of insulin causes ______

(a)

diabetes mellitus

(b)

tetany

(c)

thyroid dysfunction

(d)

cretinism

_________is a basal part of the Ovule.

(a)

Chalaza

(b)

Micropyle

(c)

Nucellus

(d)

Funiculus

Lack of menstruation generally indicates________

(a)

Pregnancy

(b)

Anemia

(c)

Amenorrhea

(d)

Over weight

In human, each cell normally consists _________of chromosomes.

(a)

23 pairs

(b)

22 pairs

(c)

20 pairs

(d)

12 pairs

Minerals like __________ slowly penetrate in and replace the original organic tissue and forms a rock like fossil.

(a)

calcium

(b)

sodium

(c)

magnesium

(d)

silica

Blood dotting factors produced by biotechnology helps patients suffering from__________.

(a)

haemophilia

(b)

homeostasis

(c)

cerebral palsy

(d)

CHD

____________ is not a method of treatment for cancer.

(a)

Surgery

(b)

Immunotherapy

(c)

Vasectomy

(d)

Radiation therapy

There are______ biosphere reserves in India.

(a)

5

(b)

13

(c)

15

(d)

18

How many parts are there in the Scratch Editor?

(a)

4

(b)

2

(c)

3

(d)

1