A radioactive atom M emits two a particles and one B particle successively. The number of neutrons in the nucleus of the product will be
X - 4 - Y
X - Y - 5
X - Y - 3
X - Y - 6
The sp3d2 hybridisation of central atom of a molecule would lead to
square planar geometry
tetrahedral geometry
trigonal bipyramidal geometry
octahedral geometry
Which of the following is used to prepare Cl2 gas at room temperature from concentrated HCl?
MnO2
H2S
KMnO4
Cr2O3
A plot of ln K against (abscissa) is expected to be a straight line with intercept on ordinate axis equal to
R ×
The ease of nitration of the following three hydrocarbons follows the order
II - III ≈ I
II > III > I
III > II > I
I = III > II
B.
II > III > I
The ease of nitration of the hydrocarbons depends upon the stability of arenium ion formed.
In compound II, the carbonium ion has two methyl groups capable of partially neutralising the positive charges on the ring carbon atoms.
In compound III, two methyl group has +I effect whereas in compound I, only one methyl group with +I effect is present. Thus, the stability of arenium ion and ease of nitration follows the order II > III > I.
Among the alkenes which one produces tertiary butyl alcohol on acid hydration?
CH3-CH2-CH=CH2
CH3-CH=CH-CH3
(CH3)2C=CH2
CH3-CH=CH2