Question # 1

Carbon black is used in the manufacture of.

Choose an answer

Dry cleaning

Shoe polishes.

Fertilizer

None of these

Oxidation of ethene with KMnO₄produces.

Choose an answer

oxalic acid

glyoxal

ethene glycol

Propene glycol

Temporary hardness of water is removed by adding.

Choose an answer

Ca(OH)₂

NaOH

KOH

CaSO₄

Chemical formula of chloroform is :

Choose an answer

CH₂Cl₂

CH₃Cl

CHCl₃

CCl₄

Which one of the following cannot by hydrolyzed?

Choose an answer

Polysacchrides

Monosacchrides

Oligosacchrides

All of these

Atmospheric region found between 50-58 km from the earthis.

Choose an answer

Thermosphere

Stratosphere

Mesophere

Thermosphere

Which gas is used to destroy harmful bacteria in water?

Choose an answer

Iodine

Chlorine

Flourine

Bromine

Formula of baking soda is.

Choose an answer

Na₂CO₃

NaHCO₃

Na₂SO₄

Na₂PO₄

Ozone layer is not found is

Choose an answer

Upper stratosphere

Mid stratosphere

Lower stratosphere

All of them

Arrhenius presented his concept about acids and bases in.

Choose an answer

1785

1787

1923

1930

All water soluble metallic oxides have characteristic of:

Choose an answer

acidic

basic

neutral

amphoteric

Acetic acid is a weak acid because it.

Choose an answer

Is used in cooking and flavouring food.

Has very low pH

Is not fully ionized

Does not contain any hydrogen ions.

The reduction of alkyl halides takes place in the presence of.

Choose an answer

Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

More Classes

Other Links

Chemistry 10th Class English Medium Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer