1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
When during electrolysis of a solution of AgNO3, 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be :
A
10.8 g
B
21.6 g
C
108 g
D
1.08 g
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
For the redox reaction Zn(s) + Cu2+(0.1 M) $$\to$$ Zn2+(1M) + Cu(s) taking place in a cell, $$E_{cell}^o$$ is 1.10 volt. Ecell for the cell will be ($$2.303{{RT} \over F}$$ = 0.0591)
A
1.80 volt
B
1.07 volt
C
0.82 volt
D
2.14 volt
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Several blocks of magnesium are fixed to the bottom of a ship to :
A
make the ship lighter
B
prevent action of water and salt
C
prevent puncturing by under-sea rocks
D
keep away the sharks
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The radionucleide $${}_{90}^{234}Th$$ undergoes two successive $$\beta$$ -decays followed by one $$\alpha$$-decay. The atomic number and the mass number respectively of the resulting radionucleide are
A
94 and 230
B
90 and 230
C
92 and 230
D
92 and 234
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