Answers

What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? A. 8.0g B. 16.0g…

The substance often used for vulcanization of rubber is? A. Chlorine B. Hydrogen peroxide C. Sulphur D. Tetraoxosulphate(vi)…

The substance often used for vulcanization of rubber is? A. Chlorine B. Hydrogen peroxide C. Sulphur D. Tetraoxosulphate(vi)…

Which of the following types of bonding does not involve the formation of new substances? A. Metallic B.…

Helium is used in observation of ballons because it is? A. Light and combustible B. light and non-combustible…

A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the chloride is?…

Chromatography is used to separate components of mixture which differ in their rates of ? A. diffusion B.…

The volume occupied by 1.58g of a gas at S.T.P is 500cm(^3). What is the relative molecular mass of…

How many valence electrons are contained in the element (^{31}_{15}P)? A. 3 B. 4 C. 15 D. 31…

The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO(_3) is treated with 0.2dm(^3) of 1 Mole…