Second period elements are known as :

Out of HCL and CH₃COOH, the solution with higher pH value is

The aqueous solution of the compound which contains both ions and molecules is

Which of the following will have maximum mass?

Which element forms two different stable chlorides?

The longest period of periodic table is:

Green vitriol is

The gas obtained at the cathode by passing current through dilute HCl  is

Sodium and Sodium ions

The relative atomic mass of an atom is the number of the times an atom is heavier than

Which of the following property is commonly exhibited by a covalent compound?

The amount of energy released when one or more electron is added to the neutral atom

The reactions in which heat energy is evolved:

Which of the following compounds contains a coordinate bond?

Which has maximum number of atoms?

The particles present in strong electrolytes are:

Chalky white precipitates soluble in sodium hydroxide are of:

Dirty green precipitates insoluble in sodium hydroxide are of:

Which of these will act as a non-electrolyte?

Anhydrous iron (II) chloride is prepared by

Fluorine is the most electronegative element of:

On the basis of electronic configuration the period and group of ₆C¹² is

An aqueous electrolyte consists of the ions mentioned in the below, the ion which could be discharged most readily during electrolysis :

Which of the following hydroxides is not an alkali?

An element Z has atomic number 16. Answer the following question on Z by choosing the correct answer from the options given below :

State the period to which Z belongs:

An element Z has atomic number 16. Answer the following question on Z by choosing the correct answer from the options given below :

State the group to which Z belongs:

An element Z has atomic number 16. Answer the following question on Z by choosing the correct answer from the options given below :

The element Z is a :

An element Z has atomic number 16. Answer the following question on Z by choosing the correct answer from the options given below :

State the formula between Z and hydrogen

Empirical formula of a compound is CBr3. If the vapour density compound is 252, its molecular formula is

OH^- and SO₄^2- ions migrate to copper anode. The ion which is likely to discharge is: