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Science TNSB Mentoring
Class 9
Periodic classification of elements
The structure of the modern periodic table
4.
s - block elements
Question:
4
m.
Choose the correct option given below:
1.
Select the following pair of substance that combine to form strontium hydroxide:
strontium oxide and water
strontium oxide and acid
strontium oxide and base
strontium oxide and nitrogen
2.
Select the following pair of substance that combine to form barium hydroxide:
barium and base
barium and water
barium and air
barium and acid
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