Q1. A wire is 1.0 m long , 0.2mm in diameter and has a resistance of 10 Ohms. Calculate the resistivity of its material.
ayanadosi71
Asked:
December 2022
Q.3 On heating blue coloured powder of copper(II)nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed [2] (i) Write a balanced chemical equation of the reaction. (ii) Identify the brown gas X evolved. (iii) Identify the type of reaction. (iv) What could...
ayanadosi71
Asked:
December 2022
Q.2 Segregate the following reactions under exothermic and endothermic. (i) Decomposition of ferrous sulphate.(Board) (ii) Decomposition of lead nitrate. (Board) (iii) Addition of quick lime to . (iv) Aqueous with aqueous .