TN 11TH CHEMISTRY - Online Test
Q1. C -X bond is strongest in
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. Various
successive ionisation enthalpies (in kJ mol-1) of an element are
given below.
The element is
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. Photo chemical smog formed in congested metropolitan cities mainly consists of
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. Non-stoichiometric
hydrides are formed by
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. RbO2
is
Answer : Option A
Explaination / Solution:
RbO2
is a super oxide which contains Rb+ and O2– ions. O2–
contains one unpaired electron and hence it is paramagnetic.
Q6. The
temperatures at which real gases obey the ideal gas laws over a wide range of
pres-sure is called
Answer : Option B
Explaination / Solution:
The
temperature at which real gases obey the ideal gas laws over a wide range of pressure
is called Boyle temperature
Q7. Which one of the following is incorrect statement ?
Answer : Option A
Explaination / Solution:
option (a) : wrong statement
Correct statement is, for a system at equilibrium, Q = Keq
Q8. The
intensive property among the quantities below is
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Which one of the following is incorrect for ideal solution ?
Answer : Option D
Explaination / Solution:
for an ideal solution,
ΔSmix ≠ 0 ; Hence ΔGmix ≠ 0
∴ incorrect
is ΔGmix = 0
Q10. Which one of the following is the likely bond angles of sulphur tetrafluoride molecule?
Answer : Option D
Explaination / Solution:
Normal bond angle in regular trigonal bipyramidal are 90º
and 120 º
due to l.p - b.p repulsion, bond angle reduced 89 º, 117 º
