1
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

When a metal rod M is dipped into an aqueous colourless concentrated solution of compound N, the solution turns light blue. Addition of aqueous NaCl to the blue solution gives a white precipitate O. Addition of aqueous NH3 dissolves O and gives an intense blue solution.

The compound N is

A
AgNO3
B
Zn(NO3)2
C
Al(NO3)3
D
Pb(NO3)2
2
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

When a metal rod M is dipped into an aqueous colourless concentrated solution of compound N, the solution turns light blue. Addition of aqueous NaCl to the blue solution gives a white precipitate O. Addition of aqueous NH3 dissolves O and gives an intense blue solution.

The final solution contains :

A
$${[Pb{(N{H_3})_4}]^{2 + }}$$ and $${[CoC{l_2}]^{2 - }}$$
B
$${[Al{(N{H_3})_4}]^{3 + }}$$ and $${[Cu{(N{H_3})_4}]^{2 + }}$$
C
$${[Ag{(N{H_3})_2}]^ + }$$ and $${[Cu{(N{H_3})_4}]^{2 + }}$$
D
$${[Ag{(N{H_3})_2}]^ + }$$ and $${[Ni{(N{H_3})_6}]^{2 + }}$$
3
IIT-JEE 2011 Paper 1 Offline
Numerical
+3
-0

Reaction of Br2 with Na2CO3 in aqueous solution gives sodium bromide and sodium bromate with evolution of CO2 gas. The number of sodium bromide molecules involved in the balanced chemical equation is ________.

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4
IIT-JEE 2011 Paper 1 Offline
Numerical
+3
-0

The total number of alkenes possible by dehydrobromination of 3-bromo-3-cyclopentylhexane using alcoholic KOH is.

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