CBSE
Multiple Choice QuestionsAssertion : Diamond and graphite do not have the same crystal structure.
Reason : Diamond is crystalline while graphite is amorphous.
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.
N-N bond length is minimum in
N2O
N2O3
N2O4
N2O5
Assertion : ClF3 has T-shape structure.
Reason : It has two lone pairs arranged at 180° angle.
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
CaO and NaCl have the same crystal structure and approximately the same ionic radii. If U is the lattice energy ofNaCI, the approximate lattice energy of CaO is
U/2
U
2U
4U
Decreasing order of bond angle is
BeCl2 > NO2 > SO2
BeCl2 > SO2 > NO2
SO2 > BeCl2 > NO2
SO2 > NO2 > BeCl2
Assertion : cis-3-chloroprop-2-enoic acid is less stable than its trans-form.
Reason : Dipole moment of cis-form is greater than trans- form.
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 : Bond dissociation energy is F2 > Cl2.
Reason : Cl2 has more electronic repulsion than F2.
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 ground state of Cu2+ the number of shells occupied, subshells occupied, filled orbitals and unpaired electrons respectively are
4, 8, 15 0
3, 6, 15, 1
3, 6, 14, 0
4, 7, 14, 2
Assertion : O2 is paramagnetic.
Reason : It has one unpaired electron.
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.
have
S-S bond
S-O bridge
O-O bridge
All S-O bond lengths are same.
