Hydrogen Chlori...

An unknown acid, on reaction with silver nitrate solution, gives white precipitates and liberates a greenish-yellow gas when heated with manganese dioxide.

Which of the following can be this unknown acid?

H₂(g) + Cl₂ (g)    2 HCl (g)
Which of the following statements is true for this reaction?

Which characteristic of bleaching powder makes it useful as disinfectant and germicide?

_____ + 2HCl  ___ Cl₂ + H₂
Which of the following metals can be placed in the blanks in above equation?

An acid on reaction with sodium sulphite releases sulphur dioxide as one of the products, and with sodium bicarbonate forms sodium chloride as one of the products.
Which of the following can be this acid?

Which of the following compounds can be used to purify HCl gas?

Electronegativity of Cl is 3, and electronegativity of H is 2.1. Which of the following statements is true for HCl.

Which of the following statements are true regarding aqua regia?

(i) It produces nascent chlorine, which reacts with noble metals.
(ii) It consists of three parts of concentrated nitric acid and one part of concentrated hydrochloric acid.
(iii) It consists of three parts of conc. hydrochloric acid and one part of concentrated nitric acid.
(iv) It produces nascent oxygen, which reacts with noble metals.

Which of the following statements are true?
(i)         A very dilute solution of HCl becomes concentrated on boiling.
(ii)        A concentrated solution of HCl becomes dilute on boiling.
(iii)       Conc. HCl will change moist litmus from red to blue.
(iv)       Conc. HCl will change colour of phenolphthalein to pink.

An unknown gas combines with HCl gas to give dense white fumes. Which of the following can be this gas?

Which of the following will happen if the temperature is set at 200°C during preparation of HCl gas from conc. H₂SO₄ and NaCl?

NaCl + H₂SO₄    NaHSO₄ + HCl
It is a reversible reaction. How does it go to completion being a reversible reaction?

Which of the following are likely to occur if delivery tube for the preparation of HCl is narrow?

(i)    Back suction of water                   
(ii)   Slow absorption of HCl gas
(iii)  Fast absorption of HCl gas                  
(iv)  Unidirectional flow in apparatus

Which of the following reactions is not feasible?

An aqueous solution converts methyl orange`s colour into pink. Which of the following is likely to be present in the solution?

Which of the following statements is true for HCl?

Which of the following releases chlorine on reacting with conc. HCl?

Which of the following cannot be carried out using HCl?

Which of the following is the most preferable method of collection of HCl gas?

When HCl gas is poured into a jar with a burning candle, the candle gets extinguished. Why does this happen?

Why is funnel arrangement used for the absorption of HCl gas in water?

Why is concentrated nitric acid not used as an indicator to know whether a gas jar is full with HCl?

MnO₂ +   MnCl₂ + 2H₂O + Cl₂
What kind of change does HCl undergo in this reaction?