1
JEE Advanced 2015 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

The correct statements about Cr2+ and Mn3+ is(are) (Atomic numbers of Cr = 24 and Mn = 25)

A
Cr2+ is a reducing agent.
B
Mn3+ is an oxidizing agent.
C
both Cr2+ and Mn3+ exhibit d4 electronic configuration.
D
when Cr2+ is used as a reducing agent, the chromium ion attains d5 electronic configuration.
2
JEE Advanced 2015 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

Fe3+ is reduced to Fe2+ by using

A
H2O2 in presence of NaOH.
B
Na2O2 in water.
C
H2O2 in presence of H2SO4.
D
Na2O2 in presence of H2SO4.
3
JEE Advanced 2015 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

The % yield of ammonia as a function of time in the reaction

N2(g) + 3H2(g) $$\rightleftharpoons$$ 2NH3(g), $$\Delta$$H < 0 at (P, T1) is given below:

JEE Advanced 2015 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English

If this reactions is conducted at (P, T2), with T2 > T1, the % yield of ammonia as a function of time is represented by

A
JEE Advanced 2015 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English Option 1
B
JEE Advanced 2015 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English Option 2
C
JEE Advanced 2015 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English Option 3
D
JEE Advanced 2015 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English Option 4
4
JEE Advanced 2015 Paper 1 Offline
Numerical
+4
-0
The number of distinct solutions of the equation

$${5 \over 4}{\cos ^2}\,2x + {\cos ^4}\,x + {\sin ^4}\,x + {\cos ^6}\,x + {\sin ^6}\,x\, = \,2$$

in the interval $$\left[ {0,\,2\pi } \right]$$ is
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