Under similar conditions of pressure and temperature, 40 ml of slightly moist hydrogen chloride gas is mixed with 20 ml of ammonia gas, the final volume of gas at the same temperature and pressure will be
Anonymous Quiz
7%
5ml
51%
20 ml
31%
80 ml
12%
120 ml
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An organic compound contains carbon , hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be
Anonymous Quiz
8%
ChO
54%
CH3O
24%
Ch2O
14%
C2h4
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Which of the following cannot give iodometric titrations
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27%
Fe^+3
34%
Ca^2+
26%
Cu^2+
13%
Pb^2+
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The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. The atomic weight of M isb
Anonymous Quiz
17%
6.3
28%
12.3
37%
18.3
18%
24.3
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The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. The atomic weight of M is
Anonymous Quiz
16%
6.3
30%
12.3
38%
18.3
16%
24.3
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A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at:
Anonymous Quiz
24%
543mm
38%
643mm
32%
743mm
6%
None
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Which of the following element has least number of electrons in its M-shell?
Anonymous Quiz
34%
K
26%
Mn
28%
Si
11%
None
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In the ground state, an element has 13 electrons in its M-shell. The element is_____.
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20%
Copper
54%
Chromium
15%
Nickel
11%
Iron
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The displacement in metres of a body varies with time t in second as y = t2 β t β 2. The displacement is zero for a positive of t equal to
Anonymous Quiz
20%
1s
39%
2s
29%
3s
12%
4s
π2
A boy starts from a point A, travels to a point B at a distance of 3 km from A and returns to A. If he takes two hours to do so, his speed is
Anonymous Quiz
4%
1km/h
34%
1.5 km/h
26%
2.5km/h
35%
3 km/h
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In the ground state, an element has 13 electrons in its M-shell. The element is_____.
Anonymous Quiz
19%
Copper
49%
Chromium
24%
Nickel
7%
Iron
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Consider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers, l = 1 and 2 are, respectively:
Anonymous Quiz
30%
12 and 4
43%
12 and 5
21%
9 and 4
5%
9 and 5
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