" (a) "3l=42

Define osmosis and osmotic pressure? Arrange the following SOLUTIONS in the increasing order of their osmotic pressure? (a) '3.42 g / L' g sucrose (b) '60 g / L' urea glucose (c) '90 g / L' (d) '58.5 g / L NaCl'

Prove the following: 42 xx [7 + (-3)] = [42 xx 7] + [42 xx (-3)]

Construct square PQRS such that l (PQ) = 5.5 cm, l (QR) = 5 cm , l (PS) = 4.2 cm, l (QS) = 6.1 cm and l (RS) = 7 cm.

Construct square BARC such that l (BA) = l (BC) = 4.2 cm, l (AC) = 6 cm, l (AR) = l (CR) = 5.6 cm.

Choose the lengths of the sides yourself and draw one equilateral, one isosceles and one scalene triangle. Equilateral triangle : In triangle ABC , l(AB) = l(BC) = l(AC) = 4.2 cm

Find L.C.M. of (i) 28, 42 " " (ii) 36, 40, 126.

Give first the step you will use to separate the variable and then solve the equation: 3l= 42

Express the following in the designated units : (i) 1.54 mm s^(-1) to pm s^(-1) (ii) 25 gL^(-1) to mg dL^(-1) (iii) 25 L to m^(3) (iv) 2.66 g cm^(-3) to mug mum^(-3) (v) 4.2 L h^(-2) to mLs^(-2)