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Class 12 Chemistry
The D-And F-Block Elements
Quiz 1
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Boron shows diagonal relation with
0%
Al
0%
C
0%
Si
0%
Sn
Explanation
Si
Catenation property is maximum in
0%
phosphorus
0%
carbon
0%
sulphur
0%
zinc
Explanation
carbon
Which one of the following is an electrophilic reagent?
0%
BF
0%
KH
0%
H
0%
None of these
Explanation
BF
Element found from sea water is
0%
magnesium
0%
Sodium
0%
Iodine
0%
None of these
Explanation
Iodine
The shape of XeF is
0%
tetrahedral
0%
square planar
0%
pyramidal
0%
linear
Explanation
square planar
Which one of the following is the strongest lewis acid?
0%
BF
0%
BCl
0%
BBr
0%
Bl
Explanation
BCl
Which one of the following does not form hydrogen bonding?
0%
NH
0%
HO
0%
HCl
0%
HF
Explanation
HCl
Main source of helium is
0%
Air
0%
Radium
0%
Monazite
0%
Water
Explanation
Monazite
Which one of the following dement is liquid at normal temperature?
0%
zinc
0%
mercury
0%
bromine
0%
water
Explanation
mercury
Which one of the following is least basic?
0%
NCl
0%
NBr
0%
NI
0%
NF
Explanation
NI
Modern periodic table is given by
0%
Debonair
0%
Mendeleef
0%
Mendel
0%
None of these
Explanation
Mendeleef
Which one of the following elements is found in free state in nature?
0%
Sodium
0%
Iron
0%
Zinc
0%
Gold
Explanation
Gold
Which of the following is the strongest oxidising agent?
0%
F
0%
Cl
0%
l
0%
Br
Explanation
F
Which of the following has maximum ionisation potential?
0%
Al
0%
P
0%
Si
0%
Mg
Explanation
P
The number of P-O-P bonds in cyclic metaphosphoric acid is
0%
2
0%
0
0%
3
0%
4
Explanation
2
Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C ?
0%
Nitric oxide
0%
Nitrous oxide
0%
Nitrogen dioxide
0%
Dinitrogen tetraoxide
Explanation
Nitrous oxide
Atomicity of phosphorus is
0%
1
0%
2
0%
3
0%
4
Explanation
4
The structure of white phosphorus is
0%
square-planar
0%
pyramidal
0%
tetrahedral
0%
trigonal planar
Explanation
tetrahedral
PCl on hydrolysis gives
0%
HPO
0%
HP
0%
POCl
0%
None of the above
Explanation
HPO
How many P-O-P bonds appear in cyclic meta-phosphoric acid?
0%
4
0%
3
0%
2
0%
1
Explanation
3
0 h : 0 m : 1 s
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