Model test paper solution 1 term 2 | jharkhand board

Model test paper class 9

Explain the terms: solution

NEET 2021 physics paper solution

Rekha has to cover a board in her class with a piece of red paper. The board is rectangular in shape. The length of the board is 7 units more than thrice its breadth. Answer the following. a. If the breadth is p, find the rule for finding the area of the piece of red paper that Rekha needs to cover the board with. b. Use the rule to find the required area of the paper, given that the breadth of the board is 40 cm.

Explain the terms: solute

A salt, when warmed with zinc powder and an NaOH solution, gives a gas that turns a filter paper soaked with an alkaline solution of K_(2)[HgI_(4)] brown. The salt responds to the brown ring test when acetic acid is used in place of sulphuric acid. The anion present in the salt is:

If Pb[CH_(3)COO]_(2) and Na_(2)S are mixed and dissolved in water and the solution is filtered then the filterate will give test of

Can filter paper dipped in silver nitrate solution instead of lead acetate paper be used for testing a sulphide?

Give the chemistry of sliver mirror test and Fehling solution test for glucose.

Test tube (A) contains aqueous zinc acetate solution while test tube (B) contains aq, zinc chloride solution .What happens if H_(2)S gas is passed into each solution ?