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\( \psi ^{2} \ = \ 0 \) represents:
1. a node
2. an orbital
3. angular wave function
4. wave function
2. an orbital
3. angular wave function
4. wave function
Subtopic: Quantum Numbers & Schrodinger Wave Equation |
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From NCERT
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Subtopic: V.S.E.P.R & V.B.T |
70%
From NCERT
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The correct order in which the – O bond length increases is
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An LPG cylinder, containing 15 kg butane at 27 ºC and 10 atm pressure, is leaking. After one day, its pressure decreased to 8 atm. The quantity of gas leaked is
1. 1 kg
2. 2 kg
3. 3 kg
4. 4 kg
2. 2 kg
3. 3 kg
4. 4 kg
61%
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In a basic buffer, 0.0025 mole of NH4Cl and 0.15 mole of NH4OH are present. The pH of the solution will be :
(Given pKb = 4.74)
(Given pKb = 4.74)
| 1. | 11.04 | 2. | 10.24 |
| 3. | 6.52 | 4. | 5.48 |
Subtopic: pH calculation |
From NCERT
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For the gas phase reaction,
Carried out in a vessel, the equilibrium concentration of C2H4 can be increased by
Carried out in a vessel, the equilibrium concentration of C2H4 can be increased by
1. decreasing the pressure
2. increasing the temperature
3. removing some C2H6
4. adding some H2
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