Question

Match the substances given in List 2 based on reactions given in List 1 and select correct answer.
List 1 : Reactions
List 2 : Reagents used in Quantitative analysis

Answer 1

A. Phosphorous is a white, waxy solid, normally stored under water because it spontaneously inflame in air.
B.Conc. $H_{2}S{O}_4$ when dropped upon table sugar, wood, paper etc., it extracts water and brings about charring.
$C_{12}{H}_{22}{O}_{11}\left(tablesugar\right)Conc.H_{2}S{O}_4⟶12C+11H_{2}O\left(blackgraphitefoam\right)$
C. $Cu+4HN{O}_3⟶Cu{\left(N{O}_3\right)}_2+2N{O}_2\left(brownfumes\right)+H_{2}O$
D. $2NaOH+{Cl}_2⟶NaCl+NaClO\left(bleach\right)\left(sodiumhypochlorite\right)+H_{2}O$
This reaction takes place in a cold, diluted solution.