Preparation of Chlorine

Q. 21. For the estimation of nitrogen, 1.4 g of an organic compound was digested by Kjeldahl method and the evolved ammonia was absorbed in 60 mL of M/10 sulphuric acid. The unreacted acid required 20 mL of M /10 sodium hydroxide for complete neutralization. The percentage of nitrogen in the compound is (1) 6% (2) 10% (3) 3% (4) 5%

Q. Select those species for which white fumes appear on heating :- BeCl2·4H2O, MgCl2·6H2O, CaCl2·6H2O, SrCl2·6H2O

Q. At the start of an experiment, one end of a U-tube of 6 mm glass tubing is immersed in concentrated ammonia solution and the other end in concentrated hydrochloric acid. At the point in the tube where vapours of ammonia and hydrochloric acid meet, white cloud is formed. At what fraction of the distance along the tube from the ammonia solution, the white cloud first form? a. 0.682 c. 0.466 b. 0.595 d. 0.534

Q. what is the %(by volume) of ozone in an ozonized sample if rate of diffusion of sample is 0.9 times than that of oxygen?

Q. Select those species for which white fumes appear on heating :- BeCl2·4H2O, MgCl2·6H2O, CaCl2·6H2O, SrCl2·6H2O (1)1 (2)2 (3)3 (4)4

Q. 25 ml of solution of Ba(OH)_2, on titration with 1M-solution of hydrochloric acid gave a titre value of 3.5 ml. The molarity of Ba(OH)_{}, solution was

Q. Compound $A$ is used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound $A$ is

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1. $PbS{O}_4$
2. $PbS{O}_4$
3. $Pb{O}_2$
4. $P{b}_3{O}_4$

Q. Molarity of 63% M/V nitric acid solution is (D=1.6 g/m)

Q. $P{b}_3{O}_4+A\to 2Pb(N{O}_3{)}_2+Pb{O}_2+H_2$

1. NH₃

2. HNO₃

3. H₂SO₄

4. 

Q. How -M effect of COOH is more than CONH2

Q.

Which one of the following elements, in its diatomic molecular state, has the highest bond energy?

1. Fluorine

2. Chlorine

3. Bromine

4. Iodine

Q. Match the following :

Column-I	Column-II
1. Pure nitrogen	a. Chlorine
2. Haber's process	b. Sulphuric acid
3. Contact process	c. Ammonia
4. Deacon's process	d. Sodium azide or Barium azide

Which of the following is the correct option?

1. 1-d, 2-c, 3-a, 4-b
2. 1-d, 2-c, 3-b, 4-a
3. 1-d, 2-a, 3-b, 4-c
4. 1-b, 2-c, 3-d, 4-a

Q. \lbrack JEE (Main)-2014\rbrack For the estimation of nitrogen, 1.4 g of anorganic compound was digested by Kjeldahlmethod and the evolved ammonia wasMabsorbed in 60 mL ofsulphuric acid. The10unreacted acid required 20 mL ofsodium10hydroxide for complete neutralization. Thepercentage of nitrogen in the compound is(1) 6%(2)10%(3) 3%(4) 5%

Q.

The halide most abundant in seawater is:

1. Fluoride

2. Bromide

3. Iodide

4. Chloride

Q. Oxidation number of C in C2H5OH

Q. Drop wise addition of concentrated sulfuric acid to a mixture of sodium chloride and manganese dioxide gives

1. Hydrogen gas and chlorine gas
2. Hydrogen chloride gas
3. Solution of chlorine
4. Chlorine gas

Q. For 1ml of c3h8, the amount of co2 produced will be ?

Q.

White fumes appear around the bottle of anhydrous aluminium chloride.Why?

Q. Drop wise addition of concentrated sulfuric acid to a mixture of sodium chloride and manganese dioxide gives

1. Hydrogen gas and chlorine gas
2. Hydrogen chloride gas
3. Solution of chlorine
4. Chlorine gas