What is the chemical symbol for hydrogen gas?

Important Questions on The Language of Chemistry

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 31

What is the combining capacity of an element called?

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 32

An element 'Y' shows variable valencies of $3$ and $5$. Write the formulae of its oxides.

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 33

An element Z has a valency of $3$. What is the formula of oxide of Z?

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 34

What is the chemical formula of ammonium phosphate?

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 35

What is the molecular formula of aluminium hydroxide?

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 36

What are the correct formulae of sodium sulphide and sodium sulphite : $NaS, N{a}_{2}S{O}_4$ $or N{a}_2 S, N{a}_{2}S{O}_3$

HARD

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 37

If an element X has its valency equal to $3$, what will be its formula with carbonate ion?

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 38

What do you mean by chemical equation?