Question # 1

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

All of them

On which base atmosphere is divided into four regions?

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Change in pressure

Change in rediation

Change in temperature

Change in volume

Marsh gas is mostly consisted of.

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Butane

Propane

Ethane

Methane

Coal having 90% carbon contents is called.

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Peat

Lignite

anthracite

bituminous

One H₂O molecule can form hydrogen bonding with how many other H₂O molecules?

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One

Two

Three

Four

When acids react with metals which gas is evolved?

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H₂

O₂

Cl₂

N₂

Higher concentration of CO causes.

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Fatique

Headache

Both of them

None of them

How much amount of sunlight reaches up to earth and absorbed:

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26%

32%

50%

18%

Chloroform is used for

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Anesthesia

Fever

Link

Toys

Formula of palmitic acid is.

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C₁₅H₃₁COOH

C₁₂H₃₅COOH

C₁₅H₃₀COOH

C₁₇H₃₄COOH

At which temperature o water shows mxamimum density.

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0 ^oC

100^oC

4^oC

-4^oC

Temporary hardness can be removed by__________.

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Quick lime

Slaked lime

Lime stone

HCl

The percentage of sun light absorbed by atmospheric gases is.

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2%

10%

18%

25%

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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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