Which one of the following is called the 'power house' of the cell ?

• Golgi body
• Mitochondrion
• Ribosome
• Lysosome
Correct Option: B  [ Mitochondrion ]

Remark:

Hydro?uoric acid is not kept in glass bottles because it reacts with:

• visible light
• sodium oxide of glass
• aluminium oxide of glass
• silicon dioxide of glass
Correct Option: D  [ silicon dioxide of glass ]

Remark:

Who discovered electromagnetic nature of light?

• Young
• Snell
• Newton
• Maxwell
Correct Option: D  [ Maxwell ]

Remark:

The ingredient that assists clotting of blood is:

• Vitamin A
• Folic acid
• Vitamin D
• Vitamin K
Correct Option: D  [ Vitamin K ]

Remark:

Which instrument is used for measuring humidity of atmosphere?

• Barometer
• Anemometer
• Thermometer
• Hygrometer
Correct Option: D  [ Hygrometer ]

Remark:

Time during which a job is processed by the computer is:

• Delay time
• Real time
• Down time
• Execution time
Correct Option: D  [ Execution time ]

Remark:

A heavy stone appears to be lighter in water. This is due to

• Upward pressure of water
• Downward pressure of water
• Lateral pressure of water
• None of these
Correct Option: A  [ Upward pressure of water ]

Remark: Water creates upward pressure due to the principle of buoyancy, as described by Archimedes' principle.

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:

ATM means:

• All Time Money
• Automatic Teller Machine
• Automated Teller Machine
• Any Time Money
Correct Option: C  [ Automated Teller Machine ]

Remark:

Which of the following could be used as fuel in propellant of rockets?

• liquid hydrogen + liquid nitrogen
• liquid oxygen + liquid argon
• liquid nitrogen + liquid oxygen
• Liquid hydrogen + liquid oxygen
Correct Option: D  [ Liquid hydrogen + liquid oxygen ]

Remark: