Std 8 social science chapter 15 bharatiya bandharan,dhoran 8 samajik vigyan ch.15 bharatiya bandharan swadhyay solution, ધોરણ 8 સામાજિક વિજ્ઞાન પાઠ 15 ભારતીય બંધારણ

Calculate the normality of a solution containing 15.8 g of KMnO_(4) in 50 mL acidic solution.

How many litres of pure acid there in 8 litres of a 20% solution? 1.4 b.1.5 c.2.4 d.1.6

The osmotic pressure of an aquoeus solution of a non-electrolyte is 18.8 atm at 15^(@)C . What will be the vapour pressure of this solution at 100^(@)C (Density of water at 100^(@) C ~~ 1g//c c ) ?

Which of the following are correct in respect of the system of equations x+y+z=8 x-y+2z=6 and 3x-y+5z=k 1)They have no solution if k=15 2)Theyhave infinitely many solutions if k=20 3)They have a unique solution if k=25 Select the correct answer using the code given below a) 1 and 2 only b) 2 and 3 only c)1 and 3 only d)1,2 and 3

The degree of dissociation of HI at a particular temperature is 0.8 . Find the volume of 1.5 M sodium thiosulphate solution required to react completely with the iodine present at equilibrium in acidic condition, when 0.135 mol each of H_2 and I_2 are heated at 440k in a closed vessel of capacity 2.0 L .

The heat of solution of anhydrous CuSO_(4) is -15.9 kcal and that of CuSO_(4).5H_(2)O is 2.8 kcal. The heat of hydration of CuSO_(4) will be

Find the solution of the pair of equations (x)/(10) + (y)/(5) - 1 = 0 and (x)/(8) + (y)/(6) = 15 and find lambda , if y = lambda x + 5 .