Question # 1

Base has a............. touch

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Soapy

Hard

Soury

Smooth

pH value of milk of magnesia.

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7

11

9

14

Sodium hydroxide solution in water will

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Turn blue litmus red

Give pink colour with phenolpthalein

Give red colour with methyl orange.

Not affect the phenolphthalein indicator

Sodium carbonate is an importnatsalt used for many purposes in indusies. Which acid is reacted with sodium hydroxide to get it.

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Oxalic acid

Citric acid

Acetic Acid

Carbonic acid

The king of chemiclas is

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KOH

HCl

NaCl

H2SO4

Bases react with acids to form water and........

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Hydrogen ions

Ammonia

Salt

Hydroxide ions

Strong alkalis have pH value.

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3 to 7

1 to 2

7 to 13

13 to 14

Large variey of compounds exists are.

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Acids

Bases

Alkalies

Salt

The word acid is derived form.

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Arabic word

English word

Latin word

Greek word

Lactic Acid is found in.

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Grapes

Tomatoes

Ant's sring

Yogurt

Acid used as a dehydrating agent.

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Nitric Acid

Phosphoric acid

Sulphuric acid

Hydrochloric acid

These salts are responsible for preventing heart attacks.

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Salts of sodium

Salts of calcium

Salt of potassium

Salt of Magnesium

Tartaric acid obtain form.

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Fats

Tarmarind , grapes

Apples

Citrus fruits

All acids have a taste.

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Sweet

Sour

Bitter

Salty

In dilute HCl blue litmus turns.

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Orange

Yellow

Red

Pink

The word alkaline has been taken form.

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Greek

Latin

Arabic

English

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