Question Bank 
Which acid is produced when milk gets sour?
- Tartaric acid
- Butyric acid
- Acetic acid
- Lactic acid
Correct Answer : 4
Alpha-Keratin is a protein present in:
- Wool
- Eggs
- Blood
- Skin
Correct Answer : 1
The purest form of iron is?
- Pig iron
- Steel
- Wrought iron
- Cast iron
Correct Answer : 3
The word used to describe the shape of the earth is?
- Circle
- Oblate Spheroid
- Flat
- Sphere
Correct Answer : 2
The Indian constitution closely follows the constitutional system of?
- USA
- UK
- Germany
- Ireland
Correct Answer : 2
The hydraulic jack to lift heavy vehicles in automobile service stations is one of the applications of:
- Pascal's law
- Boyle's law
- Archimedes principle
- Hooke's law
Correct Answer : 1
The aneroid barometer uses:
- Mercury
- Distilled water
- Alcohol
- does not use any liquid
Correct Answer : 4
Laughing gas is
- Nitric oxide
- Nitrogen pentoxide
- Nitrogen peroxide
- Nitrous oxide
Correct Answer : 4
In photography, the compound used is:
- Potassium nitrate
- Ammonium nitrate
- Silver nitrate
- Ammonium bicarbonate
Correct Answer : 3
CAN (Calcium Ammonium Nitrate) is used as:
- Explosive
- Fertilizer
- Dye
- Bleaching agent
Correct Answer : 2
Galvanization is the process of applying a protective coating of :
- Zinc over iron
- Iron over zinc
- Copper over silver
- Silver over gold
Correct Answer : 1
An essential condition for rusting is:
- High temperature
- light
- Moisture
- Dry air
Correct Answer : 3
Deficiency of Iron causes:
- Nervous disorder
- Anaemia
- Heart disease
- Impairment of vision
Correct Answer : 2
Calamine is an ore of:
- Tin
- Zinc
- Magnesium
- Copper
Correct Answer : 2
Vitamin D deficiency leads to:
- Sterility
- Capillary fragility
- Rickets
- Pellagra
Correct Answer : 3