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Question
Statement-1: An element of valency 2 can combine with an element of valency 1.
Statement-2: To write the chemical formula, one must know the symbol and valency of the elements.
Statement-1: An element of valency 2 can combine with an element of valency 1.
Statement-2: To write the chemical formula, one must know the symbol and valency of the elements.
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Solution
The correct options are
A Statements 1 is true
B Statements 2 is true
Both the statements are true.
By the criss-cross method, we can say that an element with valency 2 can combine with an element of valency 1. Moreover, for writing the chemical formula, one must know both the symbol and valency of each element.
A
Statements 1 is true
B
Statements 2 is true
Both the statements are true.
By the criss-cross method, we can say that an element with valency 2 can combine with an element of valency 1. Moreover, for writing the chemical formula, one must know both the symbol and valency of each element.
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