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1

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

+4

-1

Which series of reactions correctly represents chemical relations related to iron and its compound?

A

Fe $$\buildrel {dil.\,{H_2}S{O_4}} \over \longrightarrow $$ FeSO₄ $$\buildrel {{H_2}S{O_4},{O_2}} \over \longrightarrow $$ Fe₂(SO₄)₃ $$\buildrel {heat} \over \longrightarrow $$ Fe

B

Fe $$\buildrel {{O_2} \, {, heat}} \over \longrightarrow $$ FeO $$\buildrel {dil.\,{H_2}S{O_4}} \over \longrightarrow $$ FeSO₄ $$\buildrel {heat} \over \longrightarrow $$ Fe

C

Fe $$\buildrel {{Cl_2} \, {, heat}} \over \longrightarrow $$ FeCl₃ $$\buildrel {heat, \, air} \over \longrightarrow $$ FeCl₂ $$\buildrel {Zn} \over \longrightarrow $$ Fe

D

Fe $$\buildrel {{O_2},\,heat} \over \longrightarrow $$ Fe₃O₄ $$\buildrel {CO,\,{{600}^o}C} \over \longrightarrow $$ FeO $$\buildrel {CO,\,{{700}^o}C} \over \longrightarrow $$ Fe

2

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

+4

-1

The correct statement for the molecule, CsI₃ is :

A

it contains Cs³⁺ and I^- ions.

B

it contains Cs⁺, I^- and lattice I₂ molecule.

C

it is a covalent molecule

D

it contains Cs⁺ and $$I_3^-$$ ions

3

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

+4

-1

Which one of the following properties is not shown by NO?

A

It combines with oxygen to form nitrogen dioxide

B

It’s bond order is 2.5

C

It is diamagnetic in gaseous state

D

It is a neutral oxide

4

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

+4

-1

For the non – stoichiometre reaction 2A + B $$\to$$ C + D, the following kinetic data were obtained in three separate experiments, all at 298 K.

Initial Concentration (A)	Initial Concentration (B)	Initial rate of formation of C (mol L^-1 s^-1)
0.1 M	0.1 M	1.2 x 10^-3
0.1 M	0.2 M	1.2 x 10^-3
0.2 M	0.1 M	2.4 x 10^-3

The rate law for the formation of C is:

A

$${{dc} \over {dt}} = k[A]{[B]^2}$$

B

$${{dc} \over {dt}} = k[A]$$

C

$${{dc} \over {dt}} = k[A]{[B]}$$

D

$${{dc} \over {dt}} = k[A^2]{[B]}$$

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