Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Chemistry
For complete combustion of 5 L of an alkane, 25 L of oxygen is required. Which of the following is the alkane, if all volumes are measured at constant temperature and pressure?
Q. For complete combustion of 5 L of an alkane, 25 L of oxygen is required. Which of the following is the alkane, if all volumes are measured at constant temperature and pressure?
103
148
NTA Abhyas
NTA Abhyas 2020
Report Error
A
Isobutane
B
Ethane
C
Butane
D
Propane
Solution:
Combustion of Hydrocarbon
C
x
H
y
+
(
x
+
4
y
)
O
2
→
x
C
O
2
+
2
y
H
2
O
∴
n
∝
v
(
P
,
T
=
C
o
n
s
t
an
t
)
f
or
1
m
o
l
e
o
f
C
x
Hy
=
(
x
+
4
y
)
O
2
R
e
q
u
i
re
d
f
or
5
l
i
t
re
o
f
C
x
Hy
=
(
x
+
4
y
)
5
l
i
t
re
O
2
R
e
q
u
i
re
d
∴
r
a
t
i
o
o
f
a
l
kan
e
&
O
2
i
s
5/25
S
o
.
(
x
+
4
y
)
5
=
25
x
+
4
y
=
5
w
hi
c
h
i
s
s
a
t
i
s
f
i
e
d
b
y
C
3
H
8