Hydrochloric Acid

Q. 8.Correct acidic strength in water-HClO4, HCl, HNO3, H2SO4

Q. 95. Q Boric acid is a a arrhenius acid b bronsted acid c lewis acid d all of these

Q.

$S{O}_2$ is obtained when

1. Oxygen reacts with dilute sulphuric acid

2. Hydrolysis of dilute H₂SO₄

3. Concentrated H₂SO₄ reacts with Na₂SO₃

4. All of these

Q. 9. 4.35g of a sample of pyrolusite[MnO2] heated with concentrated HCl gave chlorine . the chlorine is then passed through KI solution liberated 6.35g of iodine .the percentage purity of pyrolusite sample is

Q. 3. Why boric acid is considered as a Lewis acid rather than bronsted acid ?

Q. 13. Which of the following pair have molecules having the same ratio of electron and proton ? 1> NH3 , PH3 2> H20 , NH3 3> H2O , PH3 4> H2S , NH3

Q.

Which of the following arrangement of molecules is correct on the basis of their dipole moments

1. BF3>NF3>NH3

2. NH3>BF3>NF3

3. NF3>BF3>NH3

4. NH3>NF3>BF3

Q. 4 B is a sodium salt .When a solution of B was added to aqueous silver nitrate a white precipitate C was formed. The precipitate did not dissolve in dilute nitric acid .Identify the anion in B and the white precipitate C

Q. Which of the following acids will not evolve $H_2$ gas on reaction with alkali metals?

1. Hydrazoic acid
2. Perxenic acid
3. None of these
4. Boric acid

Q. Sncl2 is solid while sncl4 is liquid w

Q. how to compare order of covalent nature in compounds

Q. Which of the following halides react(s) with $AgN{O}_{3\left(aq\right)}$ to give a precipitate that dissolves in $N{a}_2{S}_2{O}_{3\left(aq\right)}$
(IIT-JEE, 2012)

1. HCl
2. HF
3. HBr
4. HI

Q. 68. Q. 1ml of H₂O contains how many no. of atoms ?

Q. Why does hydrofluoric acid among the hydrohalic acids behave as the weakest acid

Q. 30 How polarisation of anion introduces covalent character in compound

Q. Which of the following gas is liberated on reaction of sodium chloride with concentrated sulfuric acid?

1. $HCl$
2. $N{a}_{2}S{O}_4$
3. $Both\left(A\right)and\left(B\right)$
4. $Noneoftheabove$

Q.

Why is carboxylic acid acidic in nature?

Q.

Which of the following reactions are used for the preparation of the halogen acid?

1. $2KBr+\underset{conc.}{H_{2}S{O}_4}⟶K_{2}S{O}_4+2HBr$

2. $Ca{F}_2+\underset{conc.}{H_{2}S{O}_4}⟶CaS{O}_4+2HF$

3. $NaCl+\underset{conc.}{H_{2}S{O}_4}⟶NaHS{O}_4+HCl$

4. $2KI+\underset{conc.}{H_{2}S{O}_4}⟶K_{2}S{O}_4+2HI$