Mention any two Uses of NaCl : 

1 Answer

Answer :

(i) It is used as a common salt or table salt for domestic purpose.

(ii) It is used for the preparation of Na2O2, NaOH and Na2CO3. 

Related questions

Description : During electrolysis of aqeous solution of NaCl, there are two type of anions are present Cl- and –OH, Cl- is discharged first than –OH,although it is present below Cl- in electrochemical series. Give reason.

Last Answer : Ans: During this electrolysis process Chloride ions come from NaCl, which is a strong electrolyte and ionize to large extent so concentration of chloride ions in solution will be high. ... chloride ions it is first discharged despite of its presence above than hydroxyl in electrochemical series.

Description : NaOH + HCl = What is the reaction of NaCl + H2O ?

Last Answer : mitigation reaction.

Description : The most commonly used chemicals in the artificial rainmaking or cloud seeding are (1) Silver Iodide (AgI) (2) Sodium Chloride (NaCl) (3) Dry Ice (Frozen CO2) (4) All of the above

Last Answer : (1) Silver Iodide (AgI) Explanation: Cloud seeding, a form of intentional weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing ... common chemicals used for cloud seeding include silver iodide and dry ice (solid carbon dioxide).

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.

Last Answer : Ans(a).Due to smaller size and high poalrising power of Li+ ion ,LiCl is more covalent than KCl. (b)Small cation Li+ ion highly polarizes large anion I- , LiI is more covalent and hence has ... to pseudo inert gas configuration, Cu+ is more polarizing than Na+ and hence CuCl is more Covalent NaCl.

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.

Description : NaCl gives a white ppt. with AgNO3 but CCl4 does not. Why?

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.

Description : What do you mean by 1M Nacl solution?

Last Answer : Ans. It means 1 mole of NaCl (58.5g) of NaCl is present in 1 litre solution.

Description : What is observed (i) When a beam of light is pressed through a colloidal sol (ii) An electrolyte, NaCl is added to hydrated ferric oxide sol. (iii) Electric current is passed through colloidal sol.

Last Answer : Ans.: (i) Tyndal Effect (iv) Coagulation (v) Electrophoresis

Description : Out of NaCl, MgSO4 , Al2 (SO4 ) 3 , K4 [Fe(CN)6 ], which one will bring about the coagulation of a gold sol quickest and in the least of concentration ?

Last Answer : Ans. Al2 (SO4 ) 3 .

Description : Which solution will allow greater conductance of electricity, 1 M NaCl at 293 K or 1 M NaCl at 323 K and why ?

Last Answer : Ans. 1 M NaCl at 323 K as the ionic mobilities increase with increase in temperature. 

Description : Out of (a) 200 ml of 2 M NaCl Soln. and (b) 200 ml of 1 M glucose Soln. which one has higher osmotic pressure?

Last Answer : (a) 200 ml of 2 M NaCl Soln. NaCl is an electrolyte which dissolve to give ions. Glucose and urea are non electrolytes. Thus glucose has minimum conc. and hence minimum osmotic pressure.

Description : What is the affect of pressure on NaCl type crystals ?

Last Answer : The coordination No. of NaCl increases from 6 to 8 .

Description : Give reasons : (a) Diamond and rhombic Sulphur are covalent solids, but the latter has lower melting points. (b) Among NaCl and CsCl, CsCl is quite stable.

Last Answer : (a) Due to weak Vander Waal’s Force in Sulphur molecule. (b) CsCl coordination number is 8. It is surrounded by 8 anion tightly. 

Description : Which of the following reagents will convert acetic acid into acetyl chloride? (a) NaCl (b) HCl/ZnCl2 (c) SOCl2 (d) HCl

Last Answer : SOCl2

Description : Which of the following reagents cannot be used to prepare an alkyl chloride from an alcohol? (a) HCl + ZnCl2 (b) SOCl2 (c) NaCl (d) PCl5

Last Answer : NaCl

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?

Last Answer : Ans: During electrolysis of Nacl, chlorine gas is produced at anode. Thus to avoid it’s reaction with platinum we use carbon electrode.

Description : Why m.p of Nacl is 801° c and that of ice is 0° c ?

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.

Description : Which of the following pairs of substances illustrate the law of multiple proportions? [CPMT 1972, 78] (A) CO and CO2 (B) H2O and D2O (C) NaCl and NaBr (D) MgO and Mg(OH)2

Last Answer : (A) CO and CO2

Description : Explain the extraction of Sodium Chloride, NaCl 

Last Answer : The most abundant source of sodium chloride is sea water which contains 2.7 to 2.9% by mass of the salt. In tropical countries like India, common salt is generally obtained by ... and magnesium chloride, MgCl2 are deliquescent impurities (because they absorb moisture easily from the atmosphere). 

Description : How is pure NaCl obtained from crude Nacl? 

Last Answer : To obtain pure sodium chloride, the crude salt is dissolved in minimum amount of water and filtered to remove insoluble impurities. The solution is then saturated with hydrogen chloride gas. ... .   Calcium and magnesium chloride, being more soluble than sodium chloride, remain in solution.

Description : The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Last Answer : ANSWER: W -- CaCl2

Description : Which of these molecules is bound by ionic bonds? w) H2O x) CH4 y) NaCl z) C6H12O6

Last Answer : ANSWER: Y -- NaCl

Description : Which of the following species has the smallest equilibrium separation for its ion-pair? w) KF x) LiF y) BaBr z) NaCl

Last Answer : ANSWER: B -- LiF

Description : 2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar

Last Answer : ANSWER: X -- 2 MOLAR 

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)

Last Answer : ANSWER: W -- HCL AND NaCl (read: H - C - L and N - A - C - L) 

Description : In which of the following compounds is the bonding most covalent? w) NaCl x) F2 y) MgS z) Fe3C

Last Answer : ANSWER: X -- F2

Description : The most commonly used chemicals in the artificial rainmaking or cloud seeding are (1) Silver Iodide (Ag I) (2) Sodium Chloride (NaCl) (3) Dry Ice (Frozen CO2 ) (4) All of the above

Last Answer : Silver Iodide (Ag I) 

Description : What is Neoprene? Mention any two uses.

Last Answer : Ans: A synthetic rubber made by chloroprene. It is a synthetic rubbers. Uses: Conveyor belts in coal mines & gaskets.

Description : Mention the Uses of Calcium carbonate? 

Last Answer : It is used as a building material in the form of marble and in the manufacture of quick lime. Calcium carbonate along with magnesium carbonate is used as a flux in the extraction of metals such as ... an antacid, mild abrasive in tooth paste, a constituent of chewing gum, and a filler in cosmetics.

Description : Mention the uses of Sodium hydrogencarbonate 

Last Answer : i) Sodium hydrogencarbonate is a mild antiseptic for skin infections. ii) It is used in fire extinguishers. 

Description : Mention the uses of NaOH. 

Last Answer : It is used in (i) The manufacture of soap, paper, artificial silk and a number of chemicals, (ii) In petroleum refining, (iii) In the purification of bauxite, (iv) In the textile industries for ... fabrics, (v) For the preparation of pure fats and oils, and (vi) As a laboratory reagent. 

Description : What is a chemical reaction called when two chemicals react to form sodium chloride (NaCl) and water (H2O).?

Last Answer : What is the answer ?

Description : A chlorine atom reacts with a sodium atom to form sodium chloride, NaCl. A chlorine atom can also react with another chlorine atom to form a chlorine molecule, Cl2. Which statement BEST explains the behavior of chlorine in these two reactions?

Last Answer : A chlorine atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons.

Description : Does 0.5% nacl in isopropyl alcohol conduct electricity?

Last Answer : answer:Isopropyl alcohol marketed in drug stores is generally in solution with H20. Typical alcohol percentages range form 70 to 91%. Pure water is a very poor electrical conductor, but the addition of ... and Cl - ions, which readily carry an electrical charge. Hope this helps explain the results.

Description : Calculate the formula unit mass of NaCl and CaCl2. -Chemistry 9th

Last Answer : hii Here's your answer Molar mass of Na=23g/mol " " " Cl=35.5g/mol Formula unit mass of NaCl=23 + 35.5 = 58.5 gm per mole Molar mass of Ca=40g/mol Molar mass of Cl2= 35.5g/mol*2=70gm per mole F. U. M. = 40+70=110 gm per mole

Description : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

Last Answer : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830 ... H^(+) + OH^(-)` is `-13680`Cal.

Description : The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called :

Last Answer : The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called : A. Heat of ... of reaction C. Heat of hydration D. Heat of solution

Description : Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated by 10 ml of 10% NaCl solution

Last Answer : Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated ... B. 30 mg C. 0.30 mg D. 3 mg

Description : What mass of NaCl would be decomposed by 98 g of `H_(2)SO_(4)` if 120 g of `NaHSO_(4)` and 27 .5 g of HCl are produced in a reaction. Assuming that la

Last Answer : What mass of NaCl would be decomposed by 98 g of `H_(2)SO_(4)` if 120 g of `NaHSO_(4)` and 27 .5 g of HCl ... .95 g B. 49 .5 g C. 0. 495 g D. 495 h

Description : Coagulation value of the electrolytes `AlCl_(3)` and NaCl for `As_(2)S_(3)` sol are 0.093 and 52 respectively. How many times `AlCl_(3)` has greater c

Last Answer : Coagulation value of the electrolytes `AlCl_(3)` and NaCl for `As_(2)S_(3)` sol are 0.093 ... `AlCl_(3)` has greater coagulating power than NaCl?

Description : For the coagulation of 200 mL of `As_(2)S_(3)` solution, 10 mL of 1 M NaCl is required. What is the coagulating value (number of milli moles of solute

Last Answer : For the coagulation of 200 mL of `As_(2)S_(3)` solution, 10 mL of 1 M NaCl is required. What is the coagulating ... A. `200` B. `100` C. `50` D. `25`

Description : How many litres of `Cl_(2)` at STP will be liberated by the oxidation of `NaCl` with `10 g KMnO_(4)` in acidic medium: (Atomic weight: `Mn=55 and K=39

Last Answer : How many litres of `Cl_(2)` at STP will be liberated by the oxidation of `NaCl` with `10 g KMnO_(4)` in ... 3.54 B. 7.08 C. 1.77 D. None of these

Description : Determine the equivalent weights of the following salts: `(a) NaCl" " (b) K_(2)SO_(4) " " Ca_(3)(PO_(4))_(2)`

Last Answer : Determine the equivalent weights of the following salts: `(a) NaCl" " (b) K_(2)SO_(4) " " Ca_(3)(PO_(4))_(2)`

Description : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What order of oxidising ability of halo

Last Answer : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What ... gt l_(2) gt H_(2)SO_(4)`

Description : `Na_(2)CO_(3),NaCl, NaNO_(2),Na_(2)SO_(3),NaBr,CH_(3)CO O Na` are separately treated with `AgNO_(3)` solution. In how many cases white precipitate is/

Last Answer : `Na_(2)CO_(3),NaCl, NaNO_(2),Na_(2)SO_(3),NaBr,CH_(3)CO O Na` are separately ... solution. In how many cases white precipitate is/are obtained.

Description : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` orange red vapours are obtained. These are of the compound

Last Answer : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2 ... B. chromyl chloride C. chromic chloride D. chromic sulphate

Description : 22. \( H _{2} O \) can act either as an acid or base. Which of the following reaction best illustrate the behaviour of water as a base?(a) \( H _{2} O + NH _{3} \rightarrow OH ^{+}+ NH _{4}^{-} \)(b) \( H _{ ... O \rightarrow H _{3} O ^{+}+ Cl ^{-} \)(d) \( HCl + NaOH \rightarrow NaCl + H _{2} O \)

Last Answer : 22. \( H _{2} O \) can act either as an acid or base. Which of the following reaction best illustrate ... HCl + NaOH \rightarrow NaCl + H _{2} O \)