1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Which of the following statements regarding sulphur is incorrect?
A
The vapour at 200oC consists mostly of S8 rings
B
At 600oC the gas mainly consists of S2 molecules
C
The oxidation state of sulphur is never less than +4 in its compounds
D
S2 molecule is paramagnetic.
2
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The rate of a chemical reaction doubles for every 10oC rise of temperature. If the temperature is raised by 50oC , the rate of the reaction increases by about :
A
24 times
B
32 times
C
64 times
D
10 times
3
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The reduction potential of hydrogen half cell will be negative if :
A
p(H2) = 1 atm and [H+] = 1.0 M
B
p(H2) = 1 atm and [H+] = 2.0 M
C
p(H2) = 2 atm and [H+] =1.0 M
D
p(H2) = 2 atm and [H+] =2.0 M
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The structure of IF7 is :
A
trigonal bipyramid
B
octahedral
C
pentagonal bipyramid
D
square pyramid
JEE Main Papers
2023
2021
EXAM MAP