Question # 1

Acetic acid is used for:

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Elching designs

Clearing metals

Flavouring food

Making explosives

In the preparation of insoluble salts, which one of the facts is incorrect?

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Two soluble salts are mixed

Two in soluble salts are mixed .

One of the salt produced is insoluble

Both of the salts produced are insoluble

Lavoisier named binary compounds of oxygen acids in .

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1787

1790

1815

1828

Which of following is not conjugate base.

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S^-2

F^-1

Na⁺

SO₄

Lactic acid founds in:

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Citrus fruits

Sour milk

Rancid Butter

Apple

Which acid is used for food preservation?

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Hydrochloric acid

Benzoic acid

Sulphuric acid

Nitric acid.

Stearic acid present in

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Apple

Fats

Urine

Grapes

According to the Lewis concept acid is a substance which can.

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Donate a proton

Donate a pair of electron

Accept a proton

Accept a pair of electron.

Phenolphthalein produces red colour in

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Acid

Base

Both a and b

None of these

When HCl and KOH is reacted the salt formed is.

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Acidic

Basic

Normal

Complex

Which is a Lewis base?

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H⁺

NH₄

BF₃

AlCl₃

Acidic solutions have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

Acids turn

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Blue litmus red

Red litmus blue

Blue litmus green

Blue litmus blue

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