List of top Chemistry Questions asked in TS POLYCET

Which of the following is a non metal?
Bases can give _____ ions in water.
Which is the least electronegative element among the following?
Washing Soda is used in ____ .
The carbonate ore among the following is
In endothermic reaction, heat is
4f elements are called as
The electronic configuration of an element is 2, 8, 6. Which one of the following element is chemically similar to the above element?
The element which belongs to 3rd period and 14th group in Modern periodic table is
Identify the salt in the following.
Solution with pH less than 7 is
Order of energy of orbitals
Four quantum numbers of valence electron of sodium
Which one of the following electromagnetic radiation has more frequency?
Colour of anhydrous \(CuSO_4\) is
The total number of atomic orbitals in third shell of an atom
The classification of elements which is based on atomic number is
Mixing acid to water is
Bleaching Powder is formed from
Which of the following electronic configuration violating Hund's rule ?
When the equation,\(\text{Na} + \text{H}_2\text{O} \rightarrow \text{NaOH} + \text{H}_2\) is balanced,what is the coefficient for 'Na' ?
The chemical reaction in which heat is absorbed is called
The valency of Calcium is
Which of the following is not an inert gas element ?
Which of the following has highest mass ?