Home
Class 11
CHEMISTRY
if assertion is false but reason is true...

if assertion is false but reason is true.

A

Changes from `sp^(3)` to `sp^(2)`

B

Remain unchanged

C

Changes from `sp^(3)` to `sp^(3)d`

D

Changes from `sp^(3)` to `sp`

Text Solution

Verified by Experts

The correct Answer is:
b
On `NH_(4)^(+)` state of hybridisation on central nitrogen atom is `sp^(2)` as is in `NH_(3)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Assertion - Reasoning Questions|6 Videos

  • ATOMIC STRUCTURE

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CHEMICAL EQUILIBRIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Pyrrole is an aromatic heterocyclic compound. Reason: It has cyclic delocalised 6pi electrons.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Amines are basic in nature. Reason: Presence of lone pair of electrons on nitrogen atom.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Alkyl isocyanides in acidified water give alkyl formamides.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: nitration of aniline can be conveniently done by protecting the amino group by acetylation. Reason. Acetylation increases the electron density in the benzene ring.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Oxidation of 1-nitronaphthalene gives o-nitrophthalic acid whereas 1-amino naphthalene on oxidation gives phthalic acid. Reason: An amino group attached to the benzene ring makes it resistant to oxidation whereas nito group makes the benzene ring susceptible to oxidation.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: C_2H_5Br reacts with alcoholic solution of AgNO_2 to form nitroethane as the major product. Reason: NO_2^(-) is an ambidient ion.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: The following reaction occurs: Reason: The semicarbazone of (A) (pentan-2-one) exists in two geometrical isomers.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: N_3^(-) is a weaker base than NH_2^(-) Reason: The lone pari of electrons on N atom in N_3^(-) is in a sp^2 -orbital while in NH_2^(-) it is in an sp^3 -orbital.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Methyl cyanide has higher boiling point than methyl isocyanide. Reason: Dipole moment of methyl cyanide is higher than that of methyl isocyanide.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Benzene diazonium salt n boiling with water forms phenol. Reason: C-N bond is polar.

Home
Profile