Matter — CHEMISTRY STD 6 — Question

A boiling tube is also called a _____________ glass test tube.

____________ latrines can control water pollution caused by human beings in the open fields.

From the elements – He, Br, Pt, and O; the element which is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.

The solid particles which remain on the filter paper are called residue and the liquid which passes through it is called ___________.

_________ is used to hold the test tube while-it is heated.

In the gaseous state, water is present as …………… in the atmosphere.

The elements that do not react chemically are called …………….

During respiration ………….. and ………… are released along with energy.

…………… gas is necessary for burning or combustion.

………….. are burned to cook food, generate heat and run vehicles.