Std-10 Most Imp Ch 2 Gseb L-11 જૈવિક ક્રિયાઓ

Which of the following is incorrect about a sample of 11.2L CH_4 gas at STP :

What is the increase in entropy when 11.2 L of O_(2) are mixed with 11.2 L of H_(2) at STP?

The solubility product of a sparingly soluble salt AX_(2) is 3.2xx10^(-11) . Its solubility (in mo//L ) is

Which of the following should be most volatile? I) CH_3 CH_2 CH_2 NH_2 II) (CH_3)_3 N III) IV) CH_3 CH_2 CH_3

In class 12 there are 8 students. In class 11 there are 6 students .In class 10 there are 5 students . Total ways of selecting 10 students , such that there are at least 2 students from each class and at most 5 students from 11 students of Class 10 and 11 combined is 100k. Then find value of k

How much water (in L) should be added to 10g CH_(3)COOH to given pOH equal to 11. K_(a)(CH_(3)COOH) = 1.8 xx10^(-5)