Description : A solution of ammonia in water contains
Last Answer : A solution of ammonia in water contains A. `H^(+)` (aq.) B. `OH^(-)` (aq.) C. `NH_(4)^(+)` (aq.) D. `NH_(3)` (aq.)
Description : Tear gas used by the police to disperse the mob contains - (1) Carbon dioxide (2) Chlorine (3) Ammonia (4) Hydrogen sulphide
Last Answer : (2) Chlorine Explanation: Tear gas, formally known as a lachrymatory agent, is a possibly lethal chemical weapon that stimulates the corneal nerves in the eyes to cause tears, pain, and even blindness.
Description : Tear gas used by the police to disperse the mob contains – (1) carbon dioxide (2) chlorine (3) ammonia (4) hydrogen sulphide
Last Answer : (2) chlorine Explanation: Tear gas is a compound. Each molecule of tear gas contains one atom of chlorine. The compound 2- chlorobenzalmalononitrile, a cyanocarbon, is the defining component of a "tear gas" commonly referred to as CS gas, which is used as a riot control agent.
Description : A well oxidized sewage contains nitrogen mainly as A. Nitrates B. Nitrites C. Free ammonia D. None of these
Last Answer : ANS: A
Description : Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate
Last Answer : (C) Ammonium phosphate
Description : Tear gas used by the police to disperse the mob contains (1) carbon dioxide (2) chlorine (3) ammonia (4) hydrogen sulphide
Last Answer : chlorine
Description : One property of ammonia is – (1) It is insoluble in water (2) it is a odourless gas (3) It is a yellowish gas (4) Its aqueous solution turns red litmus blue
Last Answer : (4) Its aqueous solution turns red litmus blue Explanation: The main use of litmus is to test whether a solution is acidic or basic. For instance, ammonia gas, which is alkaline, colours the red litmus paper blue.
Description : Absorption with chemical reaction' is involved in the removal of (A) Carbon dioxide from gaseous stream using alkaline solution (B) Benzol from coke oven gas using solar oil/wash oil (C) Ammonia ... gas using refrigerated water (D) Tar from coke oven gas in primary gas coolers using chilled water
Last Answer : (A) Carbon dioxide from gaseous stream using alkaline solution
Description : Absorption accompanied with chemical reaction is exemplified by the absorption of (A) Ammonia in water (B) Benzol present in coke oven gas by wash oil (C) SO2 in alkaline solution (D) All (A), (B) and (C)
Last Answer : (C) SO2 in alkaline solution
Description : The enthalpy change when ammonia gas is dissolved in water is called the heat of (A) Solution (B) Formation (C) Dilution (D) Combustion
Last Answer : (A) Solution
Description : Dry ammonia gas has no action on litmus paper but a solution of ammonia in water turns litmus paper color. Why?
Last Answer : Answer. A solution of ammonia in water produces OH– ions which make the solution basic and turn red litmus paper blue.
Description : One property of ammonia is (1) It is insoluble in water (2) It is a odourless gas (3) It is a yellowish gas (4) Its aqueous solution turns red litmus blue
Last Answer : Its aqueous solution turns red litmus blue
Description : NaH2PO4 Why ammonia in aqueous solution ?
Last Answer : NaH₂PO₄ is acidic in aqueous solution . This is because in aqueous solution it decomposes and produces ions. Since H₂PO₄ is acidic in NaH₂PO₄ → Na + + H₂PO₄ , the aqueous solution is also acidic.
Description : What volume at NTP of gaseous ammonia will be required to be passed into `30 cm^(3)` of 1 N `H_(2)SO_(4)` solution to bring down the acid strength of
Last Answer : What volume at NTP of gaseous ammonia will be required to be passed into `30 cm^(3)` of 1 N `H_(2 ... down the acid strength of the latter of 0.2 N ?
Description : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` and `NH_(4)Cl` gives an octahedral complex Y in the pre
Last Answer : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` ... solution is pink D. Z is a tetrahedral complex.
Description : Ammonia forms the complex `[Cu(NH_3)_4]^(2+)` with copper ions in alkaline solution but not in acid solution. The reasons for it is:
Last Answer : Ammonia forms the complex `[Cu(NH_3)_4]^(2+)` with copper ions in alkaline solution but not in ... ` ions and `NH_(3)` molecules are not available.
Description : A complex of platinum, ammonia and chloride produces four ions per molecules in the solution. The structure consistent with the observation is :
Last Answer : A complex of platinum, ammonia and chloride produces four ions per molecules in the solution. The structure consistent ... [Pt(NH_(3))_(4)Cl_(2)]Cl`
Description : AgCl dissolves in ammonia solution giving
Last Answer : AgCl dissolves in ammonia solution giving A. `Ag^(+), NH_(4)^(+) " and" Cl^(-)` B. `[Ag(NH_(3))]^(+) " and ... D. `[Ag(NH_(3))_(2)]^(+) " and" Cl^(-)`
Description : Sodium dissolves in liquid ammonia to form a solution which shows electrical conductivity.
Last Answer : Explain : Sodium dissolves in liquid ammonia to form a solution which shows electrical conductivity.
Description : Is ammonia solution a SALT?
Last Answer : Need answer
Description : What is the pH value and colour of paper of ammonia solution?
Description : The evolution of heat of solution takes place in ammonia absorption plant when (a) ammonia vapour goes into solution (b) ammonia vapour is driven out of solution (c) lithium bromide mixes with ammonia (d) weak solution mixes with strong solution
Last Answer : Ans: a
Description : Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system (a) strong solution to weak solution (b) weak solution to strong solution (c) strong solution to ammonia vapour (d) ammonia vapour to strong solution.
Last Answer : Ans: b
Description : Which of the following is the strongest base in aqueous solution? (1) Diethylamine (2) Triethylamine (3) Ammonia (4) Ethylamine
Last Answer : (1) Diethylamine Explanation: Amines are organic derivatives of ammonia, in which one, two, or all three of the hydrogens of ammonia are replaced by organic groups. All aliphatic primary amines are stronger bases than ammonia.
Description : The solution of ammonia gas at high pressure is?
Last Answer : Liquor ammonia
Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)
Last Answer : (B) Fruit juices, milk & its products and caustic soda solution
Description : Tin vessels are corroded by (A) Anhydrous ammonia (B) Aromatic solvents (C) Synthetic detergent solution (D) None of these
Last Answer : (D) None of these
Description : when an alkali metal dissolves in liquid ammonia, the solution can acquire different colors. Explain .
Last Answer : Ans. The dilute solutions of alkali metals in liquid ammonia exhibit dark blue color because ammoniated electrons absorb energy corresponding the red region of the visible light. However, If the ... copper-bronze and the solution acquires metallic luster due to the formation of metal ion clusters.
Description : A Solution of sodium in liquid ammonia is strongly reducing in nature.Why?
Last Answer : Ans Due to presence of ammoniated electrons.
Description : FeSO4 solution mixed with (NH4 ) 2 SO4 solution in 1 : 1 molar ratio gives the test of Fe2+ ion but CuSO4 solution mixed with aqueous ammonia in 1 : 4 molar ratio does not give the test of Cu2+ ion. Explain why ?
Last Answer : When FeSO4 and (NH4 ) 2 SO4 solution are mixed in 1 : 1 molar ratio, a double salt is formed. It has the formula FeSO4 (NH4 ) 2 SO4 . 6 H2O. In aqueous solution, the salt dissociates. When CuSO4 and NH3 are mixed in the molar ratio of 1 : 4 in solution, a complex [Cu (NH3 ) 4 ] SO4 is formed.
Description : Ammonia present in the coke oven gas is removed by washing with (A) Caustic solution (B) Dilute ammoniacal liquor (C) Dilute HCl (D) Ethanolamine
Last Answer : (B) Dilute ammoniacal liquor
Description : Economics of 'Solvay Process' depends upon the efficiency of (A) Carbonating tower (B) Ammonia recovery (C) Ammonia recovery and size of the plant (D) Ammoniation of salt solution
Last Answer : (C) Ammonia recovery and size of the plant
Description : Ammonia leakage in the refrigeration system is detected by (A) Sulphur stick, which on detection gives white smoke (B) Using chemical reagents (C) Its smell (D) Soap solution
Last Answer : Option A
Description : Why ammonia solution is used for the cure of honey bee sting, whereas vinegar is used for curing sting of wasp?
Last Answer : Ans: Honey bee sting is acidic so to neutralize its effect we use a basic ammonia solution. Whereas sting of wasp is alkaline so we use vinegar( weak acid) for cure.
Description : Which of the following is a strong electrolyte in aqueous solution. w) ammonia x) coffee y) Gatorade z) corn syrup
Last Answer : ANSWER: Y -- GATORADE
Description : Which of the following is the strongest base in aqueous solution ? (1) Diethylamine (2) Triethylamine (3) Ammonia (4) Ethylamine
Last Answer : Diethylamine
Description : 4.A solution of acetone contains 30 ml of acetone in 570 ml of water. Calculate the percentage concentrationof the solute in the solution. -Chemistry
Last Answer : Volume of acetone =30 ml Volume of water =570 ml Volume of solution = 30 + 570 = 600 ml Concentration of solute in solution = 30 / 600 x 100 ... = 30 / 600 x 100 = 5%
Description : 175 litres of a solution contains `88%` of acid and the rest water. How many liters of water must be added such that the resulting mixture contains `2
Last Answer : 175 litres of a solution contains `88%` of acid and the rest water. How many liters of water ... that the resulting mixture contains `23%` of water ?
Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these
Last Answer : (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out Explanation: The reason why bacteria does not grow in high concentration of sugar ... measure of unbound, free water molecules in the food that is necessary for microbial survival and growth.
Description : Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains. ... ) a narrow tube containing water (3) optical fibre (4) a narrow tube containing some chemical solution
Last Answer : (3) optical fibre Explanation: An endoscope can consist of a rigid or flexible tube and a light delivery system to illuminate the organ or object under inspection. The light source is normally outside the ... in the case of rigid endoscopes or a bundle of fiber optics in the case of a fiberscope.
Last Answer : Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out
Description : Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains ... ) a narrow tube containing water (3) optical fibre (4) a narrow tube containing some chemical solution
Last Answer : optical fibre
Description : Two vessels contains equal quantity of solution contains milk and water in the ratio of 7:2 and 4:5 respectively. Now the solutions are mixed with each other then find the ratio of milk and water in the final solution? A) 11:7 B) 11:6 C) 11:5 D) 11:9 E) None of these
Last Answer : Answer: A milk = 7/9 and water = 2/9 – in 1st vessel milk = 4/9 and water = 5/9 – in 2nd vessel (7/9 + 4/9)/ (2/9 + 5/9) = 11:7