TN 11TH CHEMISTRY - Online Test
Q1. Select
the molecule which has only one π
bond.
Answer : Option A
Explaination / Solution:
No Explaination.
Q2.
For the following reactions
(A) CH3CH2CH2Br + KOH → CH2
= CH2 + KBr +H2O
(B) (CH3)3CBr + KOH → (CH3)3
COH + KBr
(C) 
Which of the following statement is correct?
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. 40
ml of methane is completely burnt using 80 ml of oxygen at room temperature The
volume of gas left after cooling to room temperature is
Answer : Option A
Explaination / Solution:
CH4(g) + 2O2(g) → CO2
(g)+ 2 H2O (l)
Since the
product was cooled to room temperature, water exists mostly as liquid. Hence,
option (a) is correct
Q4. The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. Electronic
configuration of species M2+ is 1s2 2s2 2p6
3s2 3p6 3d6 and its atomic weight is 56. The
number of neutrons in the nucleus of species M is
Answer : Option C
Explaination / Solution:
M2+ : 1s2 2s2 2p6
3s2 3p6 3d6
M : 1s2 2s2 2p6 3s2
3p6 3d8
Atomic number = 26
Mass number =56
No. of neutrons = 56 -26 = 30
Q6. The IUPAC name of 
is
is
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. What
would be the IUPAC name for an element with atomic number 222?
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. The gaseous envelope around the earth is known as atmosphere. The region lying between an altitudes of 11-50 km is __________
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Which
of the following statements about hydrogen is incorrect ?
Answer : Option C
Explaination / Solution:
Correct statement : Hydrogen has
three isotopes of which protium
is the most common.
Q10. For
alkali metals, which one of the following trends is incorrect ?
Answer : Option C
Explaination / Solution:
Potassium is lighter than sodium (Refer table 5.3)
The correct order of density is Li < K < Na
< Rb < Cs
