Periodic Table, Periodic Properties and Variations of Properties — Chemistry STD 10 — Question

Complete :
The organic acid present in vinegar is ……………………..

An explosive prepared by using sulphuric acid is _______ .

An atom or a group of atoms attached to an alkyl group, which takes part in most of the chemical reactions is called ________ .[inert group/functional group]

Correct the following:
Finely divided platinum is used in Haber process

There are ______ groups and ______ periods in the modern form of periodic table.

Sodium acetate on hydrolysis forms sodium hydroxide and __________.

In solution or in molten state a _______ electrolyte consists almost entirely of ions.

The modern periodic table has __________ periods.

_______ reacts with bromine to give two different addition products.

The reactions occurring at the cathode during electrolysis involve _______ .