1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
25.3 g of sodium carbonate, Na2CO3 is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, Na+ and carbonate ions, CO$${}_3^{2 - }$$ are respectively (Molar mass of Na2CO3 = 106 g mol$$-$$1)
A
0.955 M and 1.910 M
B
1.910 M and 0.955 M
C
1.90 M and 1.910 M
D
0.477 M and 0.477 M
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
The correct order of the decreasing ionic radii among the following isoelectronic species is
A
Ca2+ > K+ > S2$$-$$ > C$$l$$$$-$$
B
C$$l$$$$-$$ > S2$$-$$ > Ca2+ > K+
C
S2$$-$$ > Cl$$-$$ > K+ > Ca2+
D
K+ > Ca2+ > Cl$$-$$ > S2$$-$$
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements O, S, F and C$$l$$ ?
A
C$$l$$ < F < O < S
B
O < S < F < C$$l$$
C
F < S < O < C$$l$$
D
S < O < C$$l$$ < F
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following species does not exist under normal conditions?
A
Be2+
B
Be2
C
B2
D
Li2
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12