Class 7

Acids, Bases and Salts question bank (Science)

Practice 42 free Class 7 Science - Acids, Bases and Salts questions with answers and step-by-step solutions.

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Q1.

When blue litmus paper is dipped into an acidic solution, what color change is observed?


(A)
Turns Red
(B)
Turns Green
(C)
Turns Yellow
(D)
Remains Blue
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Q2.

In the chapter 'Acids, Bases and Salts', which scientific principle governs 'Neutralization Reaction in Daily Life'?


(A)
Superstition and myth
(B)
Empirical evidence, conservation laws, and repeatable experimental observations in Neutralization Reaction in Daily Life
(C)
Aristotelian unverified claims
(D)
Random molecular movement without thermodynamics
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