Question # 1

Phenolphthalein produces red colour in

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Acid

Base

Both a and b

None of these

Methyl orange produces which colour in basic solution

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Red

Yellow

Pink

White

Acidic solutions have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

Acids have taste

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Bitter

Seetish

Sour

Saltish

Soda lime is a mixture of..

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CaCl, + KOH

NaOH + CaO

NaOH + CaCl₂

Ca(OH)₂ + CaO

Which one gas is liberated when alkalies react with ammonium salts?

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O₂

CO₂

H₂

NH3

A reaction between an acid and base produce.

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Salt and water

Salt and gas

Salt and acid

Salt and bases

Acetic acid is used for:

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Elching designs

Clearing metals

Flavouring food

Making explosives

The word acid is derived from the.

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Greek word

Latin word

English word

Arabic word.

The bond in the product of lewis acid base reaction.

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Ionic

Covalent

Metallic

Coordinate covalent

Which of one the following is Lewis base?

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BF3

H+

NH3

Ag+

Which acid is used for etching designs on copper plates?

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H₂SO₄

HNO₃

HCl

CH₃COOH

___________ is not mineral acid.

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HCl

CH₃COOH

H₂SO₄

HNO₃

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