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Acids Base and Salts

1. 

All acids essentially contains this element

A. chlorine B. hydrogen C. oxygen D. sulphur

Answer : B. hydrogen

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2. 

Which is slightly acidic in nature

A. Acetylene B. Ethylene C. Ethane D. Methane

Answer : A. Acetylene

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3. 

Salicylic acid is prepared by

A. Perkin's reaction B. Kolbe's reaction C. Reimer-Tiemann reaction D. Hofmann reaction

Answer : B. Kolbe's reaction

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4. 

The pH of a neutral solution is

A. 0 B. 6 C. 7 D. 8

Answer : C. 7

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5. 

pH of pure water is

A. 4 B. 7 C. 12 D. 0

Answer : B. 7

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6. 

The acid which etches glass is

A. nitric acid B. sulphruric acid C. hydrofluoric acid D. hypochlorous acid

Answer : C. hydrofluoric acid

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