Ammonium chloride when dissolved in water leads to a cooling sensation. The dissolution of ammonium chloride at constant temperature is accompanied by

Ammonium chloride when dissolved in water leads to a cooling sensation. The dissolution of ammonium chloride at constant temperature is accompanied by
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Ammonium chloride when dissolved in water leads to a cooling sensation. The dissolution of ammonium ... change in entropy D. No charge in enthalpy
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Which among the following changes are endothermic in nature (a) decomposition of ferrous sulphate (b) dissolution of ammonium chloride in water (c) both (a) and (b) (d) dilution of hydrochloric acid

Description : Which among the following changes are endothermic in nature (a) decomposition of ferrous sulphate (b) dissolution of ammonium chloride in water (c) both (a) and (b) (d) dilution of hydrochloric acid

Last Answer : (c) both (a) and (b)

According to our Constitution, the Rajya Sabha - (1) is dissolved once in two years. (2) is dissolved every five years. (3) is dissolved every six years. (4) is not subject of dissolution

Description : According to our Constitution, the Rajya Sabha - (1) is dissolved once in two years. (2) is dissolved every five years. (3) is dissolved every six years. (4) is not subject of dissolution

Last Answer : (4) is not subject of dissolution Explanation: Rajya Sabha is not a subject of dissolution. Lok Sabha dissolved on every five years.

Choose the correct statement about carbimazole: A. It induces improvement in thyrotoxic symptoms afer 1-4 weeks therapy B. Control of thyrotoxic symptoms with carbimazole is accompanied by enlargement of thyroid gland C. Its long term use in Grave's disease leads to ‘thyroid escape’ D. It mitigates thyrotoxic symptoms without lowering serum thyroxine levels

Description : Choose the correct statement about carbimazole: A. It induces improvement in thyrotoxic symptoms afer 1-4 weeks therapy B. Control of thyrotoxic symptoms with carbimazole is accompanied by ... leads to thyroid escape' D. It mitigates thyrotoxic symptoms without lowering serum thyroxine levels

Last Answer : A. It induces improvement in thyrotoxic symptoms afer 1-4 weeks therap

What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.

Alkaline metals when dissolved in ammonium (NH3) act as better conductor and better reducing agent what is the reason behind it ?

Description : Alkaline metals when dissolved in ammonium (NH3) act as better conductor and better reducing agent what is the reason behind it ?

Last Answer : Due to formation of solvated or Ammoniated electrons

A little ether on the palm gives a cooling sensation because ether (a) is a cold liquid (b) evaporates (c) enters the pores of the skin (d) condenses on the palm

Description : A little ether on the palm gives a cooling sensation because ether (a) is a cold liquid (b) evaporates (c) enters the pores of the skin (d) condenses on the palm

Last Answer : Ans:(b)

What happens when ammonium chloride is added to water ?

Last Answer : Adding ammonium chloride to water reduces water temperature.

Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol

Description : Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol

Last Answer : Ans: (b)

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate (A) Is prone to thermal decomposition (B) Has high water solubility and is unstable (C) Is soluble in ammonium chloride and potassium chloride solution (D) All (A), (B) and (C)

Description : Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate (A) Is prone to thermal decomposition (B) Has high water solubility and is unstable (C) Is soluble in ammonium chloride and potassium chloride solution (D) All (A), (B) and (C)

Last Answer : (C) Is soluble in ammonium chloride and potassium chloride solution

The pH of water will be decreased to below pH 7 by the hydrolysis of which of the following? w) sodium carbonate x) sodium chloride y) ammonium chloride z) potassium bromide

Description : The pH of water will be decreased to below pH 7 by the hydrolysis of which of the following? w) sodium carbonate x) sodium chloride y) ammonium chloride z) potassium bromide

Last Answer : ANSWER: C -- AMMONIUM CHLORIDE

Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water(B) Cooling and freezing of water kills the bacteria present in it(C) With increasing boiler operating pressure of steam, the maximumallowable concentration of silica in feed water goes on decreasing(D) Dissolved oxygen content in high pressure boiler feed water should benil

Description : Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water (B) Cooling and freezing of water kills the ... goes on decreasing (D) Dissolved oxygen content in high pressure boiler feed water should be nil

Last Answer : (B) Cooling and freezing of water kills the bacteria present in it

The ratio of dissolved solids in circulating water to the dissolved solids in makeup water is called a) Liquid gas ratio b) Cycle of concentration c) Cooling tower effectiveness d) None of the above

Description : The ratio of dissolved solids in circulating water to the dissolved solids in makeup water is called a) Liquid gas ratio b) Cycle of concentration c) Cooling tower effectiveness d) None of the above

Last Answer : Cycle of concentration

The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Description : The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Last Answer : Cycle of concentration

0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. The precipitated barium sulphate weighted 0.95 g. Calcula

Description : 0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. The precipitated barium sulphate weighted 0.95 g. Calcula

Last Answer : 0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. ... 95 g. Calculate the equivalent weight of the metal.

Bitumen may be dissolved in (A) Carbondioxide (B) Water (C) Sodium chloride (D) Carbon disulphide

Description : Bitumen may be dissolved in (A) Carbondioxide (B) Water (C) Sodium chloride (D) Carbon disulphide

Last Answer : Answer: Option D

Which of the following compounds will be a nonelectrolyte when dissolved in water? w) sodium chloride x) potassium nitrate y) ethanol z) hydrogen chloride

Description : Which of the following compounds will be a nonelectrolyte when dissolved in water? w) sodium chloride x) potassium nitrate y) ethanol z) hydrogen chloride

Last Answer : ANSWER: Y -- ETHANOL 

I have a question about hot dip galvanizing. Is there any effect on galvanized coating if flux (zinc ammonium chloride salt) mixed inside hydrochloric acid tank instead of the normal separate hydrochloric acid tank and flux tank?

Description : I have a question about hot dip galvanizing. Is there any effect on galvanized coating if flux (zinc ammonium chloride salt) mixed inside hydrochloric acid tank instead of the normal separate hydrochloric acid tank and flux tank?

Last Answer : They should be applied separately, the acid and flux are weakening each other mixed together like that. Although they perform two separate functions in the process, both functions are necessary and are being weakened by mixing the two chemicals. You may have problems with the plating flaking off.

How to separate ammonium chloride+ sodium chloride. Explain briefly. -Chemistry 9th

Description : How to separate ammonium chloride+ sodium chloride. Explain briefly. -Chemistry 9th

Last Answer : Ammonium chloride is separated from a mixture of sodium chloride and ammonium chloride by the process of sublimation. Ammonium chloride can be sublimed whereas sodium chloride cannot be sublimed. When ... and ammonium chloride is heated, ammonium chloride changes its state from solid to vapour.

What are the chemical signals of Ammonium Chloride ?

Description : What are the chemical signals of Ammonium Chloride ?

Last Answer : : Chemical signal of ammonium choroid NH4Cl

What is the double replacement for ammonium chloride plus calcium hydroxide?

Description : What is the double replacement for ammonium chloride plus calcium hydroxide?

Last Answer : The chemical reaction is:2 NH4Cl + Ca(OH)2 = 2 NH4OH + CaCl2

What is the double replacement for ammonium chloride plus calcium hydroxide?

Description : What is the double replacement for ammonium chloride plus calcium hydroxide?

Last Answer : The chemical reaction is:2 NH4Cl + Ca(OH)2 = 2 NH4OH + CaCl2

The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Description : The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Last Answer : Ans:(a)

Which of the following is the main compound of voter ink? (1) Silver nitrate (2) Ammonium Chloride (3) Silver Chloride (4) Ammonium Nitrate

Description : Which of the following is the main compound of voter ink? (1) Silver nitrate (2) Ammonium Chloride (3) Silver Chloride (4) Ammonium Nitrate

Last Answer : (1) Silver nitrate Explanation: The chemical used in voting inks is silver nitrate. Silver nitrate is preferred because it is soluble in water, and makes an inky black solution. When put on ... Paints and Varnish Limited in Karnataka is only company in India authorised to produce the indelible ink.

The scientific name for common salt is - (1) Sodium hydroxide (2) Sodium chloride (3) Ammonium chloride (4) Sodium hydrogencarbonate

Description : The scientific name for common salt is - (1) Sodium hydroxide (2) Sodium chloride (3) Ammonium chloride (4) Sodium hydrogencarbonate

Last Answer : (2) Sodium chloride Explanation: Common salt is known as sodium chloride. It is an important raw material for various materials of daily use, such as sodium hydroxide, baking soda, washing soda etc.

Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of – (1) Open system (2) Closed system (3) Isobaric system (4) Isothermal system

Description : Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of – (1) Open system (2) Closed system (3) Isobaric system (4) Isothermal system

Last Answer : (1) Open system Explanation: When heated, ammonlinm chloride decomposes into ammonia and hydrogen chloride. The thermal decomposition of ammonium chloride is a reversible chemical change. On heating ... hydrogen chloride. On cooling, the reaction is reversed and solid ammonium chloride is formed.

The chemical name of 'Common salt' is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Description : The chemical name of 'Common salt' is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Last Answer : (1) Sodium chloride Explanation: Sodium chloride, also known as salt, common salt, table salt or halite, is an ionic compound with the formula NaCl, representing equal proportions of sodium and ... each ion is surrounded by six ions of, the opposite charge as expected on electrostatic grounds.

During discharge of a lead-acid storage battery, which of the following actions occurs? A. The acid becomes stronger. B. Both plates change chemically to ammonium chloride. C. The acid becomes weaker. D. Hydrogen gas is liberated.

Description : During discharge of a lead-acid storage battery, which of the following actions occurs? A. The acid becomes stronger. B. Both plates change chemically to ammonium chloride. C. The acid becomes weaker. D. Hydrogen gas is liberated.

Last Answer : Answer: C

Ammonium chloride solution is stored/ treated in __________ vessels/pipes. (A) Plain carbon steel (B) Stainless steel (C) Rubber or durmet-20 lined (D) Lead

Description : Ammonium chloride solution is stored/ treated in __________ vessels/pipes. (A) Plain carbon steel (B) Stainless steel (C) Rubber or durmet-20 lined (D) Lead

Last Answer : (C) Rubber or durmet-20 lined

Out of glucose, urea and dodecyl trimethyl ammonium chloride, which one forms micelles in aqueous solution above certain concentration ?

Description : Out of glucose, urea and dodecyl trimethyl ammonium chloride, which one forms micelles in aqueous solution above certain concentration ?

Last Answer : Ans. Dodecyl trimethyl ammonium chloride. 

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Description : The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Last Answer : (D) Ammonium sulphate

The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Description : The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Last Answer : (A) Urea

Zinc Sulphate (ZnSO 4 ) should not be mixed with— (A) D.A.P. (B) Compost fertilizer (C) Ammonium Chloride (D) Urea

Description : Zinc Sulphate (ZnSO 4 ) should not be mixed with— (A) D.A.P. (B) Compost fertilizer (C) Ammonium Chloride (D) Urea

Last Answer : (A) D.A.P.

Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved? (a) Displacement reaction (b) Precipitation reaction (c) Combination reaction (d) Double displacement reaction A) Only (A) B) Only (B) C) Only (D) D) (B) & (D)

Description : Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved? (a) Displacement reaction (b) Precipitation reaction (c) Combination ... Only (A) B) Only (B) C) Only (D) D) (B) & (D)

Last Answer : D) (B) & (D)

A nitrogenous fertiliser contains 20% N2 . It could be (A) Ammonium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium chloride

Description : A nitrogenous fertiliser contains 20% N2 . It could be (A) Ammonium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium chloride

Last Answer : (B) Calcium ammonium nitrate (CAN)

Fertiliser produced during soda ash manufacture by dual process is ammonium (A) Chloride (B) Sulphate (C) Nitrate (D) None of these

Description : Fertiliser produced during soda ash manufacture by dual process is ammonium (A) Chloride (B) Sulphate (C) Nitrate (D) None of these

Last Answer : (A) Chloride

Out of the following, N2 content is minimum in (A) Urea (B) Ammonium nitrate (C) Ammonium sulphate (D) Ammonium chloride

Description : Out of the following, N2 content is minimum in (A) Urea (B) Ammonium nitrate (C) Ammonium sulphate (D) Ammonium chloride

Last Answer : (C) Ammonium sulphate

Which of the following is not a food additive? (A) Citric acid (B) Invertage (C) Benzoyl peroxide (D) Ammonium chloride

Description : Which of the following is not a food additive? (A) Citric acid (B) Invertage (C) Benzoyl peroxide (D) Ammonium chloride

Last Answer : (D) Ammonium chloride

__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine. (A) Chlorine (B) Ammonium chloride (C) Sodium carbonate (D) Sodium bi-carbonate

Description : __________ is obtained as a by-product in the manufacture of sodium hydroxide using brine. (A) Chlorine (B) Ammonium chloride (C) Sodium carbonate (D) Sodium bi-carbonate

Last Answer : (A) Chlorine

Industrial production of chloroform requires acetone and (A) Phosgene (B) Calcium hypochlorite (C) Chlorine (D) Ammonium chloride

Description : Industrial production of chloroform requires acetone and (A) Phosgene (B) Calcium hypochlorite (C) Chlorine (D) Ammonium chloride

Last Answer : (B) Calcium hypochlorite

Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium (A) Nitrate (B) Sulphate (C) Carbonate (D) Chloride

Description : Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium (A) Nitrate (B) Sulphate (C) Carbonate (D) Chloride

Last Answer : (A) Nitrate

Which of the following is an example of a "cation": w) ammonium x) chloride y) sulfate z) oxalate

Description : Which of the following is an example of a "cation": w) ammonium x) chloride y) sulfate z) oxalate

Last Answer : ANSWER: W -- AMMONIUM

Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of (1) Open system (2) Closed system (3) Isobaric system (4) Isothermal system

Description : Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of (1) Open system (2) Closed system (3) Isobaric system (4) Isothermal system

Last Answer : Open system

Which of the following is the main compound of voter ink? (1) Silver nitrate (2) Ammonium Chloride (3) Silver Chloride (4) Ammonium Nitrate

Description : Which of the following is the main compound of voter ink? (1) Silver nitrate (2) Ammonium Chloride (3) Silver Chloride (4) Ammonium Nitrate

Last Answer : Silver nitrate

Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Description : Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Last Answer : aluminium powder and ammonium nitrate

The chemical name of ‘Common salt’ is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Description : The chemical name of ‘Common salt’ is (1) Sodium chloride (2) Sodium nitrate (3) Ammonium chloride (4) Calcium chloride

Last Answer : Sodium chloride

Pick out the correct statement. (A) A chemical reaction accompanied by absorption of heat is called an exothermic reaction (B) A chemical reaction accompanied by evolution of heat is called an endothermic reaction (C) The rate constant for a first order reaction does not change on changing the concentration units (D) Chemical equilibrium state is dynamic in nature

Description : Pick out the correct statement. (A) A chemical reaction accompanied by absorption of heat is called an exothermic reaction (B) A chemical reaction accompanied by evolution of heat is called an ... does not change on changing the concentration units (D) Chemical equilibrium state is dynamic in nature

Last Answer : (C) The rate constant for a first order reaction does not change on changing the concentration units

The rate at which dissolution occurs is LEAST dependent upon which one of the following factors: w) temperature x) pressure y) solution concentration z) solute surface area

Description : The rate at which dissolution occurs is LEAST dependent upon which one of the following factors: w) temperature x) pressure y) solution concentration z) solute surface area

Last Answer : ANSWER: X -- PRESSURE

Recurrent vomiting leads to loss of (A) Potassium (B) Chloride (C) Bicarbonate (D) All of these

Description : Recurrent vomiting leads to loss of (A) Potassium (B) Chloride (C) Bicarbonate (D) All of these

Last Answer : Answer : B

Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the concrete (C) The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Description : Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Last Answer : Answer: Option D