• 1.

Baryllium Sulphate is less soluble in water due to

a
High inflammable energy
b
Low energy of dissociation
c
Low inflammation energy
d
Lonic band

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 2.
What happens when a chemical bond is formed

a
energy is always absorbed
b
energy is always released
c
more energy is released than is absorbed
d
energy is neither released nor absorbed

Explanation:
Subject:
GENERAL SCIENCE
Comment · 6 ·
• 3.
In which of the following states maximum iron ore is found?

a
FeCo3
b
Fe2O3
c
Fe3O4
d
FeS2

Explanation:
Subject:
GENERAL SCIENCE
Comment · 2 ·
• 4.
“All the four quantum numbers of two electrons in an atoms are not the same.” It is the law
Of------

a
Hunds
b
Exclusion Principle of Puali
c
Uncertainty Principle of Hiesenberg
d

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 5.
Commercial nitric acid is coloured because it contains dissolved

a
Oxygen
b
Nitrous oxide
c
Nitrogen dioxide
d
Coloured impurities

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 6.
The gas used for artificial fruit ripening of green fruit is----

a
Ethylene
b
Acetylene
c
Ethane
d
Methane

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 7.
An atomic pile is used for

a
producing X-rays
b
conducting nuclear fission
c
conducting thermonuclear fusion
d
accelerating atoms

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 8.
The substance which does not expand on going from liquid state to solid state is

a
Water
b
Cast-iron
c
Aluminium
d
Type metal

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 9.
The radio-active element used in heart pacemakers is

a
Uranium
b
Deuterium
c
Plutonium
d

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 10.
Table salt gets moist during rainy season because

a
sodium chloride is hygroscopic
b
sodium chloride is deliquescent
c
sodium chloride is contains some quantity of sodium iodide
d
sodium chloride contains hygroscopic impurities like magnesium chloride

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 11.

Which of the following is used to iodise common salt?

a
Potassium iodide
b
Iodine
c
Potassium iodate
d
Sodium iodide

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 12.
The enzyme that converts glucose to ethyl alcohol is:

a
Invertase
b
Maltase
c
Zymase
d
Diastase

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 13.
When there are two electrons in the same orbital, they have:

a
same spin
b
opposite spin
c
same or opposite spin
d
no spin

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 14.

The major harmful gas emitted by automobile vehicle which causes air pollution is

a
Carbon Monoxide
b
Methane
c
Carbon dioxide
d
ozone gas

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 15.
What is the most commonly used substance in fluorescent tubes?

a
Sodium oxide and argon
b
Sodium vapour and neon
c
Mercury vapour and argon
d
Mercury oxide and neon

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 16.
What is “milk of magnesia” chemically?

a
Magnesium carbonate
b
Sodium bicarbonate
c
Calcium hydroxide
d
Magnesium hydroxide

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 17.
Soap is prepared by boiling caustic soda with

a
Alcohol
b
Kerosene oil
c
Glycerine
d
Fats

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 18.
Which of the following is chiefly present in LPG (liquefied Petro leum Gas)

a
Methane
b
Ethane
c
Propane
d
Butane

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 19.
Which among the following metals provides amphoteric oxide?

a
Sodium
b
Silver
c
Aluminium
d
Calcium

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 20.
Which among the following stage is suitable indicator when solution carbonate is mixed with sulphuric acid?

a
Methylene blue
b
Methyl red
c
Phenolphthaline
d
Methyl orange

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 21.

a
Calcium Sulphate
b
Calcium Silicate
c
Sodium Sulphate
d
Sodium Silicate

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 22.
Isobars are lines joining places having equal

a
Rainfall
b
Pressure
c
Population
d
Height above sea-level

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 23.
The most suitable vessel for storing concentrated sulphuric acid is

a
Copper vessel
b
Aluminium vessel
c
Glass vessel
d
Earthen vessel

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 24.
What is the element that is in the highest percentage in the composition of the earth?

a
Silicon
b
Oxygen
c
Magnesium
d
Iron

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 25.
The advantage of detergents over soaps is

a
Detergents are soluble in water
b
Detergents could not give much lather
c
Detergents give lather even with hard water
d
Soaps give lather with only soft water

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 26.

Which of the following gases will effuse out of football bladder most quickly?

a
He
b
H2
c
N2
d
O2

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 27.
In which of the following substances all carbon atoms are quaternary in nature?

a
Graphite
b
Diamond
c
Teflon
d
Napthalene

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 28.
Which of the following is a natural dye?

a
Crystal violet
b
Aniline blue
c
Alizarin
d
Phenolphthalein

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 29.

a
Toluene
b
Phenol
c
Propane
d
Butane

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 30.
Which of the following vegetables oils does not contain essential fatty acids?

a
Sunflower oil
b
Mustard  oil
c
Coconut oil
d
Groundnut oil

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 31.
The metallic constituents of hard water are:

a
Magnesium , calcium and tin
b
Iron, tin and calcium
c
Calcium , magnesium and iron
d
Magnesium, tin and iron

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 32.

Which of the following fibres catches fire least?

a
Nylon
b
Cotton
c
Rayon
d
terrycloth

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 33.
Which of the following alloy is used in making magnet?

a
Duralumin
b
Stainless steel
c
Elniko
d
Magnalium

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 34.

Which of the following is the main nitrogenous waste in humans?

a
Ammonia
b
Urea
c
Uric Acid
d
Ammonium Nitrate

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 35.
Cloud is a colloidal dispersion of

a
Air in a dispersion medium of water
b
Fog in a  dispersion medium of water
c
Mist in a dispersion medium of air
d
Water drops in a dispersion medium of air

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 36.
Which of the following is the petroleum wax?

a
Bees wax
b
Carnauba wax
c
Paraffin wax
d
Jojoba wax

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 37.
Detergents used for cleaning clothes and utensils contain

a
nitrates
b
bicarbonates
c
sulphonates
d
bismuthates

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 38.

Which of the following is used in making smoke bombs?

a
Sulphur
b
Phosphorous
c
Hydrogen
d
Carbon

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 39.
Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc.?

a
b
c
d
Zinc and carbon

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 40.
Which of the following is a super cooled liquid?

a
Ice cream
b
Teflon
c
Glass
d
Mercury

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 41.
The first metal used by a man was

a
Copper
b
Silver
c
Bronze
d
Brass

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 42.

Which of the following is used to remove rust stains on cloth?

a
kerosene
b
Lime
c
Oxalic and solution
d
Petrol

Explanation:
Subject:
GENERAL SCIENCE
Comment · 1 ·
• 43.
Tear gas is :

a
Chloroprene
b
Carbonyl chloride
c
Nitrous oxide
d
Bleaching powder

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 44.
Which of the following is used to restore the colour of old oil paintings?

a
Ozone
b
Hydrogen peroxide
c
Barium peroxide
d
Sodium peroxide

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 45.
A polymeric substance used to make parachute is

a
Rayon
b
Viscose
c
Cotton
d
Terylene

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 46.

Heat resistant variety of glass is—

a
Pyrex glass
b
Hard glass
c
Flint glass
d
None of these

Explanation:
Subject:
GENERAL SCIENCE
Comment · 3 ·
• 47.
Pasteurisation of milk means

a
heating of milk to above 720c
b
heating of milk to above 620c
c
cooling of milk to about  620c
d
cooling of milk to about  100c

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 48.
Impure camphor is purified by

a
Sublimation
b
fractional crystallisation
c
fractional distillation
d
steam distillation

Explanation:
Subject:
GENERAL SCIENCE
Comment · 0 ·
• 49.

Sour taste of $CocaCola$ is due to the presence of

a
acetic acid
b
phosphoric acid
c
hydrochloric acid
d
formic acid

Explanation:
Subject:
GENERAL SCIENCE
Comment · 2 ·
• 50.
Iodised salt is beneficial for

a
lowering of blood pressure
b
prevention of dehydration
c
thyroid function
d
salivary glands
Explanation:
Subject:
GENERAL SCIENCE