Which of the following colours is not seen in a rainbow ?

• Yellow
• Green
• Red
• Brown
Correct Option: D  [ Brown ]

Remark:

India's first atomic power station was set up at:

• Surat (Gujarat)
• Tarapur (Maharashtra)
• Trombay (Maharashtra)
• Trombay (Maharashtra)
Correct Option: B  [ Tarapur (Maharashtra) ]

Remark:

Which one of the following has the highest fuel value ?

• Hydrogen
• Charcoal
• Natural gas
• Gasoline
Correct Option: A  [ Hydrogen ]

Remark: "Hydrogen" has the highest calorific value among commonly used fuels because it has a very high energy content, undergoes complete combustion, has a high heat of combustion, and can be used in various applications.

The longest cell in animals is

• Nerve cell
• Hepatocyte (Liver cell)
• Blood cell
• Muscle cell
Correct Option: A  [ Nerve cell ]

Remark:

Which of the following is not correct ?
(a) Exercise does not help in managing psychological discomfort.
(b) Exercise increases cardio-respiratory fitness.
(c) Exercise reduces risk of diabetes.
(d) Exercise helps in managing bone health.

• Exercise does not help in managing psychological discomfort.
• Exercise increases cardio-respiratory fitness.
• Exercise reduces risk of diabetes.
• Exercise helps in managing bone health.
Correct Option: A  [ Exercise does not help in managing psychological discomfort. ]

Remark:

Humidity is a measure of

• pressure in the air
• viscosity of the air
• air resistance
• moisture in air
Correct Option: D  [ moisture in air ]

Remark:

What does the airbag, used for safety of car driver, contain?

• Sodium bicarbonate
• Sodium azide
• Sodium nitrite
• Sodium peroxide
Correct Option: B  [ Sodium azide ]

Remark:

Which of the following vitamins are water soluble?

• Vitamin-A & Vitamin-B
• Vitamin-B & Vitamin-C
• Vitamin-C & Vitamin-D
• Vitamin-A & Vitamin-K
Correct Option: B  [ Vitamin-B & Vitamin-C ]

Remark:

Which of the following is not a biofertilizer ?

• Rhizobium
• Mucor
• Azotobacter
• Anabaena
Correct Option: B  [ Mucor ]

Remark:

The gas used for artificial ripening of green fruit is:

• Ethylene
• Ethane
• Carbon dioxide
• None of these
Correct Option: A  [ Ethylene ]

Remark: