Acid, bases and salts Worksheet-4
Multiple-Choice Question:
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‘ Coke’ will change the colour of china rose petals to:
(A) Blue (B) Dark pink (C) Black (D) Green
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A solution which does not change the colour of Litmus solution is ______ in nature.
(A) Acidic (B) Basic (C) Neutral
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The compounds produced on the reaction of acid and base are:
(A) Salt and small amount of base
(B) Salt, water and small amount of acid
(C) Salt and water
(D) Water and small amount of acid
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Aditya added limewater to the toilet cleaner (acid).Will the reaction mixture be hot or cold?
(A) Hot (B) Cold
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The burning sensation caused due to ant’s sting can be minimised by rubbing the sting area with:
(A) Lemon juice (B) Baking soda
(C) Tomato slice (D) Neem leaf
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Common salt changes the colour of china rose to:
(A) Blue (B) Dark pink (C) Black (D) No effect
Fill in the blanks:
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_______ is/are formed during a neutralization reaction.
True/False
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Acids are bitter in taste.
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Bases are sour in taste.
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Acid turns blue litmus red.
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Tooth decay is caused by the presence of a base.
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Indicator is a substance which shows different colour with acids & bases.
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The reaction between hydrochloric acid & sodium hydroxide will form salt & water.
Answer key:
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(B)
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(C)
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(C)
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(A)
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(B)
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(D)
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Salt/Salts
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False
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False
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True
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False
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True
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True