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Question

Fill in the blanks:

(a) Matter is neither …………….. nor ……………... in a chemical reaction.

(b) In a compound, the constitute elements are always present in a definite proportion by ……………. .

(c) Two or more elements combine to form ………………… .

(d) The combining capacity of an element is known as its ………………. .


Solution

(a) Matter is neither gained nor lost in a chemical reaction.

(b) In a compound, the constitute elements are always present in a definite proportion by weight.

(c) Two or more elements combine to form a compound.

(d) The combining capacity of an element is known as its valency.


Science
Science & Technology
Standard IX

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