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The electronic configuration of four elements L,Q, P, and R are given in brackets:
L ( 1s2 , 2s2, 2p4) Q (1s2 , 2s2, 2p6, 3s2 ,3p5)P ( 1s2 , 2s2 2p6, 3s1) R ( 2s2 , 2s2, 2p6 , 3s2,) The formulae of ionic compounds that can be formed between these elements are:
(1) L,P, RL, AND R2 Q
(2) LP, RL, PQ, AND RQ
(3) P2 , RL, PO and RQ2
(4) LP, R2L, P2 and RQ
Ans: P2 , RL, PO and RQ2
The valency of sulphur in sulphuric acid is: (1) 2 (2) 4 (3) 6 (4) 8 Ans: 6
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Chain transfer agents In Vinylic polymerisation several other molecules react along with main growing chain to interrupt the additional growth of the original chain. This takes
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Classification of dyes according to their application Direct dyes: this type of dyes can be directly applied to the fiber, both vegetable and animal, by dipping in hot aqueo
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Benzylic halide follows sn1 mechanism always...............the order of halides going sn1 rxn is BENZYL>ALLYL>TERTIARY>SECONDARY>PRIMARY>METHYL beacause of stability, benzyl & ally
Q. Describe Lime-soda method for softening of hard water. Discuss the advantages of the process and the chemistry involved in it.
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