Electrolysis — Chemistry STD 10 — Question

The ore from which aluminium is extracted must first be treated with _______ so that pure aluminium oxide can be obtained .

Elements liberated at the anode during electrolysis are said to be _______ .

The organic compounds having same molecular formula, but different structural formulae are called ________ .[homologues/isomers]

Ethyne is prepared by the action of_______ on _______ .

An _______ is a homogeneous mixture of two or more metals or a metal and a _______ .

Heating ammonium chloride with sodium hydroxide produces ______ (ammonia, nitrogen)

The properties of an alloy are not necessarily _______ between those of its _______ The melting point of an alloy is always less than the melting point of its constituent _______ .

Pine oil used in froth floatation process act as a _______ .

According to Gay-Lussac's Law, if the pressure of a gas is halved and the volume is kept constant, the temperature must be ________ (doubled/same/halved)

The modern periodic table has __________ periods.