Which of the following is a wrong statement ? In a given period of the Periodic Table, the s-block element has, in general, a higher value of
electronegativity
atomic radius
ionisation energy
electron affinity
What is the H of the reaction?
CH2Cl2 (g) C (g) + 2H (g) + 2Cl (g)
The average bond energies of C-Cl bond and C-H bond are 416 kJ and 325 kJ mol-1 respectively.
1482 kJ
1482 J
1492 kJ
1492 J
The bond length of HCl bond is 2.29 x 10-10 m. The percentage ionic character of HCl, if measured dipole moment is 6.226 x 10-30 C- m, is
8%
20%
17%
50%
The only o p-directing group which is deactivating in nature is
-NH2
-OH
-X(halogens)
-R(alkyl groupd)
The IUPAC name of the following compound is
1, 2-dimethyl-2-butenol
3-methylpent-3-en-2-ol
3, 4-dimethyl-2-buten-4-ol
None of the above
Ammonia gas can be dried over
CaCl2
conc. H2SO4
P2O5
quick lime
D.
quick lime
Ammonia is dried over quick lime (CaO). It cannot be dried over conc. H2SO4, P2O5 and CaCl2 because it reacts with these compounds.