Alcohol contains :

• nitrogen, hydrogen, oxygen
• carbon, hydrogen, oxygen
• oxygen, carbon, nitrogen
• hydrogen, chlorine, oxygen
Correct Option: B  [ carbon, hydrogen, oxygen ]

Remark:

When Lunar Eclipse occurs ?

• When Sun is between Earth and Moon
• When Earth is between Sun and Moon
• When Moon is between Earth and Sun
• When Earth is between Sun and other celestial bodies.
Correct Option: B  [ When Earth is between Sun and Moon ]

Remark:

What is the first artificial satellite to orbit Earth ?

• Sputnik I
• Explorer I
• Vanguard I
• Discoverer I
Correct Option: A  [ Sputnik I ]

Remark:

Electric appliances have star rating ( upto 5 stars) on them. More the number of stars :

1. longer is the life span of the appliance
2. more stringent is the quality checks
3. Higher is the energy efficiency of the appliance

Which of the above is / are correct ?

• 1 only
• 3 only
• 1 and 2 only
• 1, 2 and 3
Correct Option: B  [ 3 only ]

Remark:

The purest form of iron is

• White cast iron
• Grey cast iron
• Wrought iron
• Steel
Correct Option: C  [ Wrought iron ]

Remark:

Cow milk is a rich source of:

• Vitamin A
• Vitamin B
• Vitamin C
• Vitamin D
Correct Option: B  [ Vitamin B ]

Remark:

Rainbow is formed due to a combination of:

• refraction and absorption
• dispersion and diffraction
• refraction and scattering
• dispersion and total internal re?ection
Correct Option: D  [ dispersion and total internal re?ection ]

Remark:

Junk e-mail is also called:

• spam
• spoof
• sniffer script
• spool
Correct Option: A  [ spam ]

Remark:

One (1) molecule of CFC deplete __________ molecule of Ozone in the Ozonosphere.

• 1,00,000
• 10,000
• 10,00,000
• No one of the above
Correct Option: A  [ 1,00,000 ]

Remark:

Which of the following does not have red blood cells?

• Snake
• Peacock
• Frog
• Earthworm
Correct Option: D  [ Earthworm ]

Remark: