Question # 1

Which is used to remove the grease stains from clothes?

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NaOH

KOH

Al(OH)₃

NH₄OH

Guldberg and waage put forward law of mass action in:

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1860

1869

1870

1879

All water soluble metallic oxides have characteristic of:

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acidic

basic

neutral

amphoteric

In an irreversible reaction dynamic equilibrium:

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Never establishes

Established before the completion of reaction

Establishes after the completion of reaction

Establishes readily

The accumulation of which vitamin causes bone like deposits in the kidney.

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Vitamin D

Vitamin E

Vitamin B

Vitamin A

Alkynes are also called.

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Olefine

Ethene

Paraffins

Acetylenes

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Percentage of carbon in peat is.

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50%

60%

70%

80%

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

Which one is not a characteristic of an acid:

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it turns red litmus blue

it reacts with base to form salt and water

Its aqueous solution conduct electric current

it has sour taste

Catalyst used in Haber's process is:

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Ni

Fe

Cu

Zn

According to Arrhenius concept acid is a substance which dissociates in aqueous solution to give.

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Hydrogen ions

Hydroxide ions

Both a and b

None of these

Ethylene glycol can be prepared with the reaction of KMnO₄ and _____

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CH = CH

CH₃ - CH₃

CH₃CH₂CH₃

CH₂= CH₃

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