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WorksheetsP block revision
Total questions: 10
Worksheet time: 8mins
Nitrogen is chemically inert. Why?
Due to presence of double bond require more energy to break
Due to presence of triple bond require more energy to break
Triple bond requires less energy to break
None of the above
The correct order of acidic strength of hydrogen halides are
HF<HCl<HBr<HI
HF<HBr<HCl<HI
HI<HBr<HCl<HF
HI<HCl<HBr<HF
Diborane is ______
B2H8
B4H10
B2H3
B2H6
Which of the following elements has a greater tendency to form chain of bonds with itself or with other atoms?
B
N
C
O
Choose the wrong statement
Some of the p-block elements show negative oxidation states also
Halogens gain two electrons to give a stable halide ion
Inert gases have ns2np6 configuration and hence more stable.
P block elements contains metalloids
Uses of silicones in electrical motors is due to the ........ Property
Chemical inertness
Water repellent
Oily nature
Electrical insulator
Silicones or mixed with Paints and enamels to make them resistance towards
High temperature
Sunlight
Chemicals
All the above
The elements of group 15 generally exhibit -3, +3 and +5 oxidation states. Bismuth forms stable compound in +3 and not even have -3. Why?
(a)
