Question # 1

A base is a substance which neutralizes and acid. Which of these substances is not a base?

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aqueous ammonia

Sodium chloride

Sodium carbonate

Calcium oxide

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Lavoisier named binary compounds of oxygen acids in .

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1787

1790

1815

1828

What is the pOH of Ca(OH)2, 0.02 M Solution.

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1.698

1.397

12.31

12.61

All acids turn blue litmus.

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Red

Blue

Pinck

White

__________ acid cause acidity of stomach.

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Oxalic acid

Hydrochloric acid

Sulphuric acid

Nitric Acid

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

Grease stains from clothes are removed by sing.

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Ammonium nitrate

Aluminium hydroxide

Ammonium hydroxide

Aluminum chloride

Soda lime is a mixture of..

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CaCl, + KOH

NaOH + CaO

NaOH + CaCl₂

Ca(OH)₂ + CaO

Which acid is found in sour milk?

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`Formic acid

Lacitc acid

Citric acid

Butric acid

Arrhenius put forward acid base concept in.

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1878

1786

1787

1790

Latin word 'Acidus' means:

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sweet

salty

sour

bitter

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