IIT-JEE 2011 Paper 1 Offline | p-Block Elements Question 44 | Chemistry

1

IIT-JEE 2011 Paper 1 Offline

MCQ (Single Correct Answer)

+3

-1

Extra very pure N₂ can be obtained by heating

A

NH₃ with CuO

B

NH₄NO₃

C

(NH₄)₂CrO₇

D

Ba(N₃)₂

2

IIT-JEE 2009 Paper 2 Offline

MCQ (Single Correct Answer)

+3

-0

Match each of the reactions given in Column I with the corresponding product(s) given in Column II:

	Column I		Column II
(A)	$$\mathrm{Cu+dil.~HNO_3}$$	(P)	$$\mathrm{NO}$$
(B)	$$\mathrm{Cu+conc.~HNO_3}$$	(Q)	$$\mathrm{NO_2}$$
(C)	$$\mathrm{Zn+dil.~HNO_3}$$	(R)	$$\mathrm{N_2O}$$
(D)	$$\mathrm{Zn+conc.~HNO_3}$$	(S)	$$\mathrm{Cu(NO_3)_2}$$
		(T)	$$\mathrm{Zn(NO_3)_2}$$

A

(A)$$\to$$(P), (S); (B)$$\to$$(R), (S); (C)$$\to$$(R), (T); (D)$$\to$$(R), (T)

B

(A)$$\to$$(T), (S); (B)$$\to$$(P), (S); (C)$$\to$$(R), (T); (D)$$\to$$(S), (T)

C

(A)$$\to$$(P), (S); (B)$$\to$$(Q), (S); (C)$$\to$$(R), (T); (D)$$\to$$(Q), (T)

D

(A)$$\to$$(R), (S); (B)$$\to$$(Q), (S); (C)$$\to$$(R), (T); (D)$$\to$$(S), (T)

3

IIT-JEE 2009 Paper 1 Offline

MCQ (Single Correct Answer)

+3

-1

The reaction of P$$_4$$ with X leads selectively to P$$_4$$O$$_6$$. The X is

A

Dry O$$_2$$.

B

A mixture of O$$_2$$ and N$$_2$$.

C

Moist O$$_2$$.

D

O$$_2$$ in the presence of aqueous NaOH.

4

IIT-JEE 2008 Paper 1 Offline

MCQ (Single Correct Answer)

+3

-1

Statement 1 : Pb$$^{4+}$$ compounds are stronger oxidising agents than Sn$$^{4+}$$ compounds.

and

Statement 2 : The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to 'inert pair effect'.

A

Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1.

B

Statement 1 is True, Statement 2 is True; Statement 2 is NOT correct explanation for Statement 1.

C

Statement 1 is True, Statement 2 is False.

D

Statement 1 is False, Statement 2 is True.