Question

Nalini visited her relative in jaipur. One day her aunt expressed unhappiness with the milk supplied by the milkman . she complained of a adulterated milk . Nalini asked her to buy an instrument to check the purity of milk . Next day the supplied milk was tested and found water being mixed in the milk her aunt informed all her neighbours about the instrument

Answer 1

The instrument is Mg(OH ) 2

or it is milk of magnesia