Question # 1

Which gas like a glass wall of g green house:

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CO

O2

CO2

N2

In hydrogenation of vegetable oil catalyst employed is.

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Ni

Pt

ZnO

Cr₂O₃

When the numbers of moles of both sides are equal in a reaction, then the unit of K_c will be:

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No unit

mol^-2 dm⁶

mol dm³

mol^-2dm

Monosaccharides are crystalline solids

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Grey

Crimson

Silver

White

Which acid is found in sour milk?

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`Formic acid

Lacitc acid

Citric acid

Butric acid

Tetra saccharides are classified under.

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Monosaccharides.

Oligosaccharides

Polysaccharides

All of them

In solvay's process slaked lime is used to:

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Prepare CO₂

Prepare quick lime

Recover ammonia

Form Na₂CO₃

Which acid used for food preservation?

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H₂SO₄

HNO₃

HCl

CH₃COOH

How many atmospheric temperature increase every year due to accumulation of CO₂ in air.

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0.03 ^oC

0.05 ^oC

1^oC

2^oC

Which of the following is fat soluble vitamin?

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Vitamin A

Vitamin E

Vitamin K

All of these

Formula of acetaldehyde is:

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The general formula of alkane is

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C_nH_2n+2

C_nH_2n-2

C_nH_2n

C_nH_2n+1

The lives of aquatic plants and animals are indirectly related to concentration of dissolved gas in water.

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Nitrogen

Hydrogen

Oxygen

Carbon

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

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