Question # 1

Forest fires and burning of wood emit.

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CO₂

NO₂

SO₂

Cl₂

Who put forward the vital force theory?

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Berzelius

Wohler

Dalton

Lavoisier

Which one of the diseases causes severe diarrhea and can be fatal?

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Jaundice

Dysentery

Cholera

Typhoid

_________ acid is used in lead storage batteries as electrolyte.

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CH₃COOH

HCl

HNO₃

H₂SO₄

Bases gave taste:

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Bitter

Sweetsh

Sour

Saltish

the chemical formula of chalcopyrite is:

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Cu₂S

CuFe₂S

CuS

FeS

At equilibrium state there are possibilities: OR types of chemical equilibrium are.

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1

2

3

4

Equilibrium constant has no unit when number of moles of reactants and products are:

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same

Different

Both a and b

None of these

Oxidation of alkenes forms:

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Glycol

Glyoxal

Formic acid

Oxalic acid

Normaily rain water is weakly acidic because.

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SO₃

CO₂

CO₃

NO₂

Ethen is prepared by heating a mixture of ethanol and excess of concentrated sulphuric acid at:

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150°C

180°C

250°C - 300°C

400°C - 450°C

Infrared radiation emitted by the earth are absorbed by?

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CO₂,H₂O

N₂,O₂

CO₂,N₂

O₂,CO₂

Which of the following is reducing sugar?

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Glucose

Maltose

Sucrose

Starch

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

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