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Equal volume of 2 solution having pH=2, pH=10 are mixed together at 90^@ C. The pH of resulting solution is : (Take K_(w)=10^(-12) at 90^@ C)

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution t

The limbs of a U -tube are lowerd into beakes A and B . A contains water and B some other liquid. Density of water is 1g//cm^(3) . Some air is pumped out from C and then this end is closed, as a result of this liquids rise by 10cm and 12cm respectively, on the left and right side. which of the following is/are correct?

CH_(3)NH_(2) (0.12 mole, pK_(b) =3.3) is added to 0.08 moles of HCl and the solution is diluted to on litre, resulting pH of solution is : (a) 10.7 (b) 3.6 (c) 10.4 (d) 11.3

Sentence : Type & Parts || Day 1 || Class 10 English Grammar || UP Board Exam 2022