1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is incorrect?
A
Pure sodium metal dissolves in liquid ammonia to give blue solution.
B
NaOH reacts with glass to give sodium silicate.
C
Aluminium reacts with excess NaOH to give Al(OH)3.
D
NaHCO3 on heating gives Na2CO3.
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following oxide is amphoteric?
A
SnO2
B
CaO
C
SiO2
D
CO2
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag.
A
Fe2O3(s) + 3CO(g) $$ \to $$ 2Fe(l) + 3CO2(g)
B
CaCO3(s) $$ \to $$ CaO(s) + CO2(g)
C
CaO(s) + SiO2(s) $$ \to $$ CaSiO3(s)
D
2C(s) + O2(g) $$ \to $$ 2CO(g)
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following carbonyls will have the strongest C–O bond ?
A
Cr (CO)6
B
Fe (CO)5
C
Mn (CO)6+
D
V(CO)6-
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