The molecular interactions responsible for hydrogen bonding in HF
ion-induced dipole
dipole-dipole
dipole- induced dipole
ion-dipole
Assertion (A) : AlCl3 exists as a dimer through halogen bridged bonds.
Reason (R) : AlCl3 gets stability by accepting electrons from the bridged halogen.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
(A) is true, but (H) is false.
(A) is false, but (R) is true.
Which of the following statements regarding sulphur is not correct?
At about 1000 K, it mainly consists of S, molecules.
The oxidation state of sulphur is never less than + 4 in its compounds.
S2 molecule is paramagnetic.
Rhombic sulphur is readily soluble in CS2.
Two oxides of an non-metal X contain 50% and 40% of non-metal respectively. If the formula of the first oxide is XO2. Then the formula of second oxide is
X2O3
X2O5
XO3
X2O
S + Conc. H2SO4 → X + Y
Here X is a gas and Y is a liquid and both are triatomic molecules. The number of electron lone pairs present on the central atoms of X and Y are respectively.
2,1
1,0
1,2
2,2
Which one ofthe following statements is not correct?
In CO2 molecule, carbon hybridisation is sp
Fullerenes are made by heating graphite in an electric are in the presence of argon gas
Both [SiF6]2- and [SiCl6]2- ions are known
In CO molecule, there are one 'sigma' and two "pi" bonds