The chemical used as a fixer in photography is_____?

A: borax

B: sodium sulphate

C: sodium thiosulphate

D: ammonium sulphate

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sodium thiosulphate

The severity of 2005 earthquake in Pakistan on Richter scale was ?

A: 7.6

B: 6.9

C: 7.1

D: none

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7.6

Which Vitamin help blood clotting?

A.Vatiamin D

B.Vitamin E

C.Vitamin A

D.Vitamin K

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D. Vitamin K

The Lake of Vitamin C creates which disease ?

A.Nightblindness

B.skin disease

C. Rickets

D.Pernicious anaemia

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B. skin disease

Which Vitamins is not stored in Human Body

A.Vitamin A

B.Vitamin B

C.Vitamin C

D.Vitamin D

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C. Vitamin C

What is the Velocity of sound m/s

A.342

B.343

C.345

D.346

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B. 343

Which element plants exhale at night?

A.Carbondoxide

B.Niterogen

C.Oxygen

D.Carbon

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A. Carbondoxide

In the Composition of the earth, Aluminum is _____?

A: 20.30%

B: 27.50%

C: 14.50%

D: 8.23%

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8.23%

The total energy of revolving electron in an atom________

A: Can never be positive

B: Will always be positive

C: Can have any value above zero

D: Cannot be negative

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Can never be positive

Which of the following chemicals is not found in tobacco smoke?

A: Rocket fuel

B: Chlorine bleach

C: Nail polish remover

D: Barbecue lighter fluid

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Nail polish remover

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