Acids, Bases & Salt

Choose the odd one out.

• Lemon

• Tamarind

• Vinegar

• Sugar

Which latin word means sour?

• Acidic

• Acere

• Acid

• Aculous

Lime water is _______ in nature.

• acidic

• basic

• neutral

• both acidic and basic

_________ is the chemical name for vitamin C which is present in the item shown below:

• Oxalic acid

• Ascorbic acid

• Lactic acid

• Tartaric acid

When an ant bites, it releases ____________acid.

• acetic

• formic

• hydrochloric

• nitric

The natural indicator litmus is obtained from _____.

• china rose

• cabbage

• moss

• lichen

Colour of blue litmus solution ___________ when poured into ammonium hydroxide solution.

• turns red

• turns green

• stays the same

• turns yellow

Litmus has a ______ colour when mixed with distilled water.

• mauve

• blue

• yellow

• green

A turmeric stain on a white shirt turns to red when washed with soap. It is because ______.

• soap solution is acidic in nature

• soap solution is basic in nature

• soap solution is both acidic and basic in nature

• soap solution is neutral in nature

Acids are substances that give ____ ions in aqueous solution.

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