Class 9 Chemistry MCQ
“×” & “.” Represent:
Shells
Neutrons
Electrons
Atoms
Which molecules is donor in nature?
H2
NH3
O2
HF
All metals are solid at ________________ temperature.
Room
High
Low
None
…………. are sonorous.
Metals
Solids
Metals
Force
The reaction of ionic compound is very ________________ in solution.
Slow
Fast
Medium
Nil
An atom having six electrons in its achieve noble electronic configuration by:
gaining one electron
losing all electrons
gaining two electrons
losing two electrons
________________ cannot be seen by naked eye.
Matter
Molecules
Solid
Liquids
The bond between two atoms will be ionic if the difference between their electronegativities is:
Less than 1.7
Greater than 1.7
Zero
Less than 1.2
H° + H° are ________________ in energy.
Lower
Higher
Medium
Nil
How many covalent bond does C2H2 molecule have?
two
three
four
five
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