MEDIUM
9th CBSE
IMPORTANT
Earn 100

An element E has valency 3. Write the formula for its 
(a) bromide, 
(b) oxide, 
(c) carbonate,
(d) nitrate.
 

Important Questions on Atoms and Molecules

MEDIUM
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 5
Write the names of the following acids/ bases.
(a) KOH 
(b) HCl
(c) NH4OH
(d) HNO3
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 6
Write the cations and anions present (if any) in CH3COONa.
MEDIUM
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 6
Write the cations and anions present (if any) in NaCl.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 6
Write the cations and anions present (if any) in H2.
MEDIUM
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 6
Write the cations and anions present (if any) in NH4NO3.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 7
State the number of atoms present in CO32-.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 7
State the number of atoms present in P2O5.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 3 - Atoms and Molecules>EXERCISE 3B>Q 7
State the number of atoms present in PO43-.