Assertion : Ozone is an allotrope of oxygen.
Reason : Oxygen is bluish colour liquid and in singlet state it is more paramagnetic.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : SnI4 is an orange solid.
Reason : The colour arises due to charge transfer.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : Magnetic moment of Dy is the highest among the lanthanoids.
Reason : Orbital motion contributes magnetic moment.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
A.
If both assertion and reason are true and reason is the correct explanation of assertion.
4f electrons are well screened thus their spins and their orbital motions about their nuclei contribute to the magnetic moment. Hence, even Dy has highest magnetic moment.
Assertion : The kinetics of the reaction
mA + nB + pC → m'X + n'Y + p'Z
obeys the reaction as- = k[A]m[B]n
Reason : The rate of reaction does not depend upon the concentration of C.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
In the following sequence of the reactions, what is D ?
Primary amine
An amide
Phenyl isocyanate
A chain lengthed hydrocarbon
CH3OC2H5 and (CH3)3C-OCH3 are treated with hydroiodic acid. The fragments after reactions obtained are
CH3I + HOC2H5; (CH3)3C-I + HOCH3
CH3OH + C2H5I; (CH3)3Cl + HOCH3
CH3OH + C2H5; (CH3)3C-OH + CH3I
CH3I + HOC2H5; CH3I + (CH3)3C-OH
Which of the following amines will not give N2 gas on treatment with nitrous acid (NaNO2 + HCl)?
C2H5NH2
CH3NH2
(CH3)2CH-NH2
All will give N2
Benzoic acid is treated with lithium aluminium hydride. The compound obtained is
benzaldehyde
benzyl alcohol
toluene
benzene