P BLOCK........

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An element A belongs to 14th group and occupies period no 6. A reacts with conc.HCl to give B an acid. A is used to prepare C which is used as an antiknock in automobiles . Identify element A and compound B &C.......

MENTION THE REACTIONS.........

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6 Answers

21

tapanmast Vora ·2009-03-25 21:14:18

A = Pb

B = Chloroplumbous acid = H2PbCl6

C = T.E.L.

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1

Pavithra Ramamoorthy ·2009-03-25 23:20:34

A VERY SMALL BUT BIG CORRECTION DUDE..............

B= CHLOROPLUMBIC ACID..........................(H₂PbCl₄)

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1

Anuj ·2009-03-26 04:57:48

as already answered of a and b, i wud ans the combined of a,b and c

a) lead(Pb)
b) chloroplumbus acid(H₂PbCl₂)
c) lead chloride(PbCl₄)

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1

Pavithra Ramamoorthy ·2009-03-26 05:38:04

tapan got two rit........

the ans is

A = Pb

B = Chloroplumbic acid = H2PbCl4

C = T.E.L.(tetraethyl lead)

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1

ANKIT MAHATO ·2009-03-26 05:48:23

everyone please don't keep any doubt in ur mind regarding question 2 :

Concentrated HCl evolves hydrogen and also forms Chloroplumbic acid

Pb + 2HCl â†’ PbCl₂ + H₂ â†‘

PbCl₂ + 2HCl -> H₂PbCl₄ (chloroplumbic acid)

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1

Pavithra Ramamoorthy ·2009-03-26 06:14:40

;-)

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