QUESTIONS

Author:Jharkhand Board

Jharkhand Board Science Solutions for Exercise - QUESTIONS

Simple step-by-step solutions to QUESTIONS questions of Chemical Reactions and Equations from Science: Class 10. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from QUESTIONS with Hints & Solutions

HARD
10th Jharkhand Board
IMPORTANT
Science: Class 10>Chapter 1 - Chemical Reactions and Equations>QUESTIONS>Q 1

A solution of a substance ‘X’ is used for whitewashing.
(i) Name the substance ‘X’ and write its formula.
(ii) Write the reaction of the substance ‘X’ named in (i) above with water

HARD
10th Jharkhand Board
IMPORTANT
Science: Class 10>Chapter 1 - Chemical Reactions and Equations>QUESTIONS>Q 2

Why is the amount of a gas collected in one of the test tubes in ‘Electrolysis of water’ activity double of the amount collected in the other? Name this gas.