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The type of bonding in \({Cu(NH_3)_4}^2\)+ is?
Which quantum number divides shells into orbitals?
Cathode rays causes an object placed behind a perforated anode to cast a shadow on the screen. This observation shows that the rays?
If an atom is represented as \( _{11}^{23}X \), which of the following deduction is correct?
The basic assumption in the kinetic theory of gases that the collisions of the gaseous molecules are perfectly elastic implies that the?
A gas exerts pressure on its container because?
0.0075 mole of calcium trioxocarbonate (IV) is added to 0.015 mole of a solution of hydrochloric acid. The volume of gas evolved at s.t.p is?
[Molar volume of a gas at s.t.p = 22.4 dm3]
The percentage of water of crystallization in ZnSO\(_4\).7H\(_2\)O is?
[Zn = 65, S = 32, O = 16, H = 1]
Which of the following is a physical change?
A mixture of sugar and sulphur can be separated by?
Use the diagram to answer this question.The colour of the fountain water is
Use the diagram to answer this question. The gas that can be used to demonstrate the experiment is
Detergents are manufactured with straight hydrocarbon chains so as to make them
Polyvinyl chloride is used in the production of
The product obtained when a mixture of benzene vapour and hydrogen are passed over nickel catalyst at 180ºC is
Reduction of alkanones with LialH4 produces
Reduction of nitroalkanes, nitrites and amides is a route for the preparation of
A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into
A hydrocarbon X with a molar mass of 26 consists of 92.3% carbon. What is its molecular formular?