List of top Chemistry Questions asked in TS POLYCET

Fats are esters of higher fatty acids and:
Which of the following is the hardest material?
The law of octaves was proposed by:
Which of the following methods is used for the concentration of ore?
The purification method used for blister copper is:
What is the symbol used in a chemical equation to represent the gas evolved in a reaction?
Oxygen gains ____________________ electrons during the chemical changes.
The reaction of an acid with a base to give a salt and water is known as
Volume occupied by 10 g of hydrogen at STP in litres is
Ionic bond is formed due to transfer of electrons from
The number of sigma and \(\pi\)-bonds in ethyne molecule:
Which one of the following is a ketone?
Bond angle in BeCl\(_2\) molecule is
The process of dissolving acid or base in water is
Number of elements present in the sixth period of the modern periodic table
The final compound formed when methane reacts with chlorine in the presence of sunlight is
Polar covalent bond present in
Ionization energy along a period from left to right generally
Number of bond pairs and lone pairs in the valence shell of nitrogen in NH\(_3\)
Which one of the following atoms is smaller in size?
Element with atomic number 17 belongs to
Law of octaves was proposed by
If the hydrogen atom of -COOH gets replaced by 'R' (alkyl group) _______________ are obtained.
The hydrocarbons containing only single bonds between carbon atoms are called
The metal that occurs in the free form (native) is