When NH4Cl is added to NH4OH solution the dissociation of ammonium hydroxide is reduced. It is due to:

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#Question id: 14850

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A bag contains 2 white and 3 black balls. A ball is drawn 5 times, each being replaced before another is drawn. Find the probability that exactly 4 of the balls drawn are white.

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#Question id: 14851

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From a pack of 52 cards two are drawn at random. The probability that one is a king and the other a queen is

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#Question id: 14852

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In three throws of two dice, the probability of throwing doublets not more than two times is

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#Question id: 14853

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If the sum of the mean and the variance of a Binomial distribution for 18 trials is 10, find the distribution

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#Question id: 14854

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If the sum of the mean and the variance of a Binomial distribution for 5 trials is 1.8 find the distribution.

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#Question id: 14855

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For a Binomial distribution, the mean is 6 and the standard deviation is 2 . The Binomial distribution is