Question # 1

The word alkaline has been taken form.

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Greek

Latin

Arabic

English

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

In dilute HCl blue litmus turns.

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Orange

Yellow

Red

Pink

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

Tartaric acid obtain form.

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Fats

Tarmarind , grapes

Apples

Citrus fruits

Strong alkalis have pH value.

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3 to 7

1 to 2

7 to 13

13 to 14

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

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Hydrogen ions

Ammonia

Salt

Hydroxide ions

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Science 8th Class Urdu Medium Chapter 7 Online Test MCQs With Answers

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