List of top Chemistry Questions asked in TS POLYCET

Colour of anhydrous \(CuSO_4\) is

How many s-block and p-block elements are there in the second period of the modern periodic table ?

In the modern periodic table group 2 (IIA) elements are called as

Which of the following has highest mass ?

Which of the following is not an inert gas element ?

Atomic number of an element is 17 then the period to which this element belongs

Which of the following atomic numbers of elements have similar chemical properties?

The valency of Calcium is

The chemical reaction in which heat is absorbed is called

When the equation,\(\text{Na} + \text{H}_2\text{O} \rightarrow \text{NaOH} + \text{H}_2\) is balanced,what is the coefficient for 'Na' ?

Which one of the following is not a product in the electrolysis of aqueous NaCl ?

In electrolytic refining of metals, the pure metal is taken as

In an atom, when electron jumps from ground state to excited state

The orbital which is filled with electrons immediately after '3p' is -

The quantum number which explains about the spacial orientation of orbitals is

When n = 4, the total number of subshells in an orbit is n =

Which of the following has larger wavelength in electromagnetic spectrum?

The correct set of four quantum number values for the valence electron of sodium atom is

The reaction that takes place in Thermite process is

What does the symbol '∆' represent in a chemical equation ?

The product formed when quick lime reacts with water is

The impurities present in the ore is called as

Which of the following is used as a flux in the smelting of Haematite?

Potassium and Calcium belongs to

Which of the following is an ore of Iron ?