std 8 samajik vigyan solution October 2021/ekam kasoti dhoran 8 samajik vigyan solution October 2021

Which is a solution to (8^x)(2^4)=(1/2)^x ?

10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be

NEET 2021 physics paper solution

In the following system of equations determine whether it has unique solution, no solution or infinitely many solutions. In case there is a unique solution, find it: x-2y=8,\ \ \ \ 5x-10 y=10

Find the mole fraction of solute in its 8 molal aqueous solution.

What will be the direction of movement of water , when solution X having water potential of 12 - bars and another solution Z to -8 bars is separated by a semipermeable membrane ?

The equation ((log)_8(8/(x^2)))/(((log)_8x^2))=3 has- a. \ no integral solution b. one natural c. \ two real solution d. one irrational solution

Calculate the pH of 10^(-8) M HCl solution .

Find the solution set of 2x-7lt8,x inN . Represent the solution set on the number line.

What is the pH of 1 M solution of acetic acid ? To what volume one litre of this solution be diluted so that pH of the resulting solution will be twice of the original value ? (K_(a)=1.8xx10^(-5))