General Science - Mock Test 25

Question 241

The number of Chromosomes pairs in Human body are?

A) 23 B) 42 C) 46 D) None of above

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Question 242

When the light is passed through a prism, the colour which deviates least is?

A) Red B) Green C) Violet D) Blue

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Question 243

Alexander Fleming discovered?

A) X-Ray B) Telegraph C) Penicillin D) Microscope

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Question 244

Who invented typewriter?

A) Marconi B) Pascal C) Sholes D) Waterman

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Question 245

Chemically the term Dry Ice is?

A) Solid Water B) Solid Nitrogen C) Solid Carbon dioxide D) Solid Sodium

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Question 246

What is laughing gas?

A) Carbon monoxide B) Nitrogen Monoxide C) Nitrogen Dioxide D) Nitrous Oxide

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Question 247

The bond which is present between water molecules is?

A) Electrovalent bond B) Covalent bond C) Hydrogen bond D) Vander Waals bond

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Question 248

Which of the following radioactive elements is found in large amounts in India?

A) Radium B) Thorium C) Plutonium D) Uranium

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Question 249

Which variety of coal contains the highest percentage of carbon?

A) 1Lignite B) 2Bituminous C) Anthracite D) Peat

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Question 250

A solar cell is a device that converts?

A) Light energy into heat energy B) Heat energy into electrical energy C) Electrical energy into light energy D) Light energy into electrical energy

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