Test Page (Chemistry)

The number of electrons participating in single covalent bond is:-

Ice float on water because:

Maximum number of electron in k Shell can be…………?

1st period has elements:

The atomic mass of fluorine is:

The two major two component of atmosphere are :

Long form of periodic Table is constructed on the basis of:

The valency of phosphate radical is:

Lower layer of atmosphere is extended upto

The number of electrons participating in triple covalent bond is:-

Methyl orange is ______ in alkaline solution

The oxidation number of oxygen in peroxide is:-

Industrial chemistry deals with the manufacturing of compounds:-

The elements which are presents on the extremely left side of the periodic table are called:-

______ percent of sunlight is absorbed by atmospheric gases.

Carbohydrates regulate the amount of _____ in our body.

Colour of calcium flame in air is:-

Which element is found in most abundance in the atmosphere?

It is a common indicator

The number of electrons in the valence shell of halogens is:-

One method of producting hydrogen gas on a large scale is by the reaction of methane with steam. Which of the following equation, correctly shown this reaction?

A cation is derived from

Which one of the following non metals is lustrous

Which one of the following is synthetic fiber:-