Question # 1

Which one is not an Arrhenius base?

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NaOH

KOH

Ca(OH)₂

NH₃

Which one of the following statements is not correct about active mass?

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Rate of reaction is directly proportional to activ emass.

Active mass is taken in molar concentration

Active mass is represented by square brackets

Active mass means total mass of substances.

General formula of alkenes.

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C_n H_2n-2

C_nH_2n

C_nH_2n+2

C_nH_2n-1

Which gas protects the Earth's surface from ultraviolet radiations?

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CO₂

CO

N₂

O₃

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

The % age of carbon is lignite is

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60

70

80

90

Dilute acid react with carbonates the produce product except _________

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Salt

Water

Carbon di oxide

Hydrogen gases

Which one of the following is not the characteristics of monosaccharide?

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White crystalline solids

Soluble in water

Hydrolysable

Reducing is nature

Water which produces good lather with soap is called.

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Soft water

Hard water

Heavy water

All of them

All acids turn blue litmus.

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Red

Blue

Pinck

White

The bond in the product of lewis acid base reaction.

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Ionic

Covalent

Metallic

Coordinate covalent

Which of the following in insoluble in water.

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Benzene

NaCl

KCl

All of them

Incomplete combustion of alkanes produce.

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Carbon dixoide only

Carbon monoxide only

Carbon monoxide carbon black and water

Carbon dioxide and carbon black

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