Std 12 Economics Gala Assignment 2022 Solution|Paper_1 Section_A & B Gala Assignment Eco022 Solution

JEE Advanced 2018 | Paper - 1 | Complete Solution

One student was assigned he experiment of interaction of iron nail with a solution of copper sulphate. What observationss he/she would have recorded as per given below ? (a) Initial colour of the solution. Final colour of the solution (c) Change in the colour of iron nail. Mention the type of this reaction.

Equal volume of liquid A (d=0.8 gm/ml) and liquid B (d=1.2 gm/ml) are mixed to form a solution. Calculate mole fraction of A in solution. [ M_(A)=16,M_(B)=32 ]

When an assignment problem has more than one solution, then it is…

Which of the following solutions will not change the colour of blue litmus paper to red? 1. Acid solution 2. Base solution 3. Common salt solution Select the correct answer using the code given below.

A solution containing 3 g of solute A (M=60 g/mol) in 1L solution is isotonic with a solution containing 8.55 g of solute B in 500 mL solution. What is the molar mass of B?

The conductivity of 0.1 n NaOH solution is 0.022 S cm^(-1) .When equal volume of 0.1 N HCl solution is added, the conductivity of resultant solution is decreased to 0.0055 S cm^(-1) . The equivalent conductivity of NaCl solution is :