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The covalency of nitrogen in HNO3 is:
(1) 0
(2) 3
(3) 4
(4) 5
Ans: 5
can we reduce r-cn to primary ammines using fe/hcl
List orbitals from biggest to smallest, 3s, 3p, 3d.
Conditions which a dye must satisfy and describe them
In the following which substance will have highest boiling point: (1) He (2) CsF (3) NH 3 (4) CHCl 3 Ans: CsF
Physical Properties of oils and Fats (a) Fats are solids, while oils are liquids. (b) They both are soluble in ether, chloroform and benzene although insoluble in water.
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
Discuss the ion exchange process of water softening. Give an account of the variety of mechanisms of Lubrication. Write notes on bulk and solution polymerization techniques.
The atomic orbitals are progressively filled in order of increasing energy. This principle is called as: (1) Hund's rule (2)Aufbau principle (3) Exclusion principle (4
Describe the following observations: a. Lyophilic colloid is more stable than Lyophobic colloid. b. Coagulation takes place when sodium chloride solution is added to a collo
what are noble gases
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