1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Reason of lanthanoid contraction is
A
negligible screening effect of 'f'- orbitals
B
increasing nuclear charge
C
decreasing nuclear charge
D
decreasing screening effect.
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following statements is correct for the spontaneous adsorption of a gas?
A
$$\Delta $$S is negative and, therefore $$\Delta $$H should be highly positive.
B
$$\Delta $$S is negative and therefore, $$\Delta $$H should be highly negative.
C
$$\Delta $$S is positive and therefore, $$\Delta $$H should be negative .
D
$$\Delta $$S is positive and therefore, $$\Delta $$H should also be highly positive.
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
When 22.4 liters of H2(g) is mixed with 11.2 litres of Cl2(g), each at S.T.P. the moles of HCl(g) formed is equal to
A
1 mol of HCl(g)
B
2 mol of HCl(g)
C
0.5 mol of HCl(g)
D
1.5 mol of HCl(g)
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
1.0 g of magnesium is burnt with 0.56 g O2 in a closed vessel, Which reactant is left in excess and how much ? (At. wt. Mg = 24, O = 16)
A
Mg. 0.16 g
B
O2, 0.16 g
C
Mg, 0.44 g
D
O2 , 0.28 g