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If uncertainty in the position of electr...

If uncertainty in the position of electron is zero, the uncertainty in its momentum would be

A

zero

B

`geh/(4pi)`

C

`lth/(4pi)`

D

Infinite

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 2-EXERCISE
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  6. The heat absorbed in a reaction at constant temperature and constant v...

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  7. For the reaction, 2NH3(g) rarr N2(g) + 3H2 (g), which of the following...

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  9. Which has the maximum lattice energy?

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  11. The molecule in which C-H bond length is maximum is

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  12. The catalyst used in the above conversion is

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  13. Benzene reacts with I2 in presence of which of the following to give i...

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  14. Hypothermia is a disease for

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  15. The atomic weight and equivalent weight of an element are 27 and 9 res...

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  16. Which block contains inner transition elements.

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  17. Which element has highest oxidising property?

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  18. Is entropy increases for-the following change? Explain :C(diamond) rar...

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  19. According to first law, for a cyclic process q + w =……………..

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