AIPMT 2012 Prelims | d and f Block Elements Question 43 | Chemistry

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AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

Identify the alloy containing a non-metal as a constituent in it.

Invar

Steel

Bell metal

Bronze

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order?
(At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)

Mn > Fe > Cr > Co

Fe > Mn > Co > Cr

Co > Mn > Fe > Cr

Cr > Mn > Co > Fe

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Acidified K₂Cr₂O₇ solution turns green when Na₂SO₃ is added to it. This is due to the formation of

Cr₂(SO₄)₃

CrO$$_4^{2 - }$$

Cr₂(SO₃)₃

CrSO₄

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

Match List I (substances) with List II (processes) employed in the manufacture of the substances and select the correct option.

Column $${\rm I}$$ (Substances)		Column $${\rm I}$$$${\rm I}$$ (Processes)
(A)	Sulphuric acid	(i)	Haber's process
(B)	Steel	(ii)	Bessemer's process
(C)	Sodium hydroxide	(iii)	Leblanc process
(D)	Ammonia	(iv)	Contact process

(A) $$ \to $$ (i); (B) $$ \to $$ (iv); (C) $$ \to $$ (ii); (D) $$ \to $$ (iii)

(A) $$ \to $$ (i); (B) $$ \to $$ (ii); (C) $$ \to $$ (iii); (D) $$ \to $$ (iv)

(A) $$ \to $$ (iv); (B) $$ \to $$ (iii); (C) $$ \to $$ (ii); (D) $$ \to $$ (i)

(A) $$ \to $$ (iv); (B) $$ \to $$ (ii); (C) $$ \to $$ (iii); (D) $$ \to $$ (i)

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