Chemistry, asked by hirangipatel2012, 5 months ago

Which of the following statement is incorrect?

i) All isotopes of same elements have different valency

ii) Position of hydrogen in modern periodic table is a demerit.

iii) Lead nitrate solution removes hydrogen sulphide in purification of hydrogen gas.

iv) Hydrogen is entrapped in rocks in free state.

Answers

Answered by mouli0

2

Answer:

option number 4 is incorrect

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