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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