6. Define valency in terms of hydrogen.
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Answer:
The valency when defined in terms of hydrogen is the number of hydrogen atoms that can combine with or replace one atom of the element. The Valency of Hydrogen is 1.
Answer:
Valency is the number of hydrogen atoms that combine or displace with another atom to form a compound. One atom of hydrogen combines with one atom of chlorine to form HCl, the valency of chlorine is 1.