What is the affect of pressure on NaCl type crystals ?

1 Answer

Answer :

The coordination No. of NaCl increases from 6 to 8 .

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Last Answer : ANSWER: Y -- HEXAGONAL

Description : Cubic crystals containing lattice points only at the corners are called: w) body centered x) face centered y) simple z) hexagonal

Last Answer : ANSWER: C-SIMPLE 

Description : Chlorine is used in swimming pools as a disinfecta In its natural, standard state it is a: w) blue liquid x) colorless crystals y) yellow-green gas z) reddish-brown gas

Last Answer : ANSWER: Y -- YELLOW-GREEN GAS

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Last Answer : mitigation reaction.

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Description : Which elements of C-family does not dissolve in NaCl?

Last Answer : Ans. Si

Description : Give reason for the following: (a)LiCl is more covalent than KCl. (b)LiF has lower melting point than NaCl. (c)CuCl is more covalent than NaCl.

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Description : Why solid NaCl starts separating out from a saturated solution of NaCl if HCl gas is passed through it?

Last Answer : Ans. HCl in the solution provides Clions. This increases the ionic product in NaCl and so the solid NaCl starts separating out.

Description : What happens HCl gas passed through saturated NaCl solution?

Last Answer : Ans. NaCl will be precipitated out.

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Last Answer : Answer. Being an ionic compound NaCl gives Cl negative ion and thus gives White ppt. with silver nitrate but CCl4 is a covalent compound and thus do not give Cl negative ions.

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Description : How could we prevent H+ ions to be discharged first than Na+ during electrolysis of aqueous solution of NaCl?

Last Answer : Ans: This could be prevented by using mercury cathode during this kind of electrolysis, because H+ ions need high voltage to be discharged at mercury cathode. In this way sodium got discharged at cathode despite H+ ions.

Description : Why carbon electrode is used during electrolysis of Nacl, instead of Pt electrode?

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Last Answer : NaCl is ionic solid in which there are strong attractive forces are present between its ions so its m.p is very high i.e.; 801° c .Whereas ice is a covalent solid and forces of attraction between its molecules are comparatively weaker than NaCl. So its m.p is 0° c.

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Description : Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 ... - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

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