Question

Directions. In the following questions a statement of Assertion is followed by

a statement of Reason. Mark the correct choice as

(a) If both Assertion and Reason are true and Reason is the correct explanation

of Assertion.

(b) If both Assertion and Reason are true but Reason is not the correct

explanation of Assertion.

(c) If Assertion is true but Reason is false.

(d) If Reason is true but Assertion is false.

(e) If both Assertion and Reason are false

Assertion: Chemical reaction changes the physical and chemical state of a

substance.

Reason: When electric current is passed through water (liquid), it decomposes

to produce hydrogen and oxygen gases.

Assertion: When calcium carbonate is heated, it decomposes to give calcium

oxide and carbon dioxide.

Reason: The decomposition reaction takes place on application of heat,

therefore, its and endothermic reaction.

Assertion: Chips manufacturers usually flush bags of chips with gas such as

nitrogen to prevent the chips from getting oxidised.

Reason: This increase the taste of the chips and helps in their digestion​

Answer 1

Answer:

1) (d) If Reason is true but Assertion ls false.

2) (a) If both Assertion and Reason are true and Reason is the correct explanation  of Assertion.

3) (c) If Assertion is true but Reason is false.

Explanation:

BTW this is from class 10 CBSE  "chemical equations and reactions" chapter

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