Introduction to Hydrogen Chloride
Trending Questions
Write the equation of the reaction involved.
Write the names of the products obtained. Mention one use of each product.
Why is concentrated Sulphuric acid kept in airtight bottles?
How can you obtain Nitric acid from potassium nitrate?
Explain, why (or give reasons for)
(i) In the laboratory preparation of hydrogen chloride from sodium chloride, the gas can be obtained below 200°C or above. But the lower temperature is preferred.
(ii) Hydrogen chloride is not collected over water.
(iii) Hydrochloric acid cannot be concentrated above 22.2% by boiling.
(iv) HCl gas does not conduct electricity, but hydrochloric acid conducts electricity.
(v) Only a very dilute solution of hydrogen chloride in water can be concentrated by boiling the solution while a very concentrated solution would become less concentrated when boiled.
(vi) When the stopper of a bottle full of HCl gas is opened there are fumes in the air.
(vii) A solution of HCl gas in water turns blue litmus red and conducts electricity, while HCl gas dissolves in toluene and it has no effect on litmus and does not conduct electricity.
(viii) An aqueous solution of chlorine is acidic in nature.
How will you prove that Hydrochloric acid contains (i) hydrogen (ii) chlorine? Write equations for the reactions.
Hydrogen Chloride occurs in the free state
False
True
Which of the following is/was name given to the solution of Hydrogen chloride in water?
Hydrochloric Acid.
Marine Acid.
Muriatic Acid.
All of the above.
Explain each and every topic in briefly with example ?
- sulphuric acid
- carboxylic acid
- nitric acid
The name "hydrogen chloride" was given by
Glauber
Davy
Joseph Priestly
Lavoisier
Where does HCl occur naturally as a gas?
In volcanic eruptions.
In sea water.
In the earths crust.
In glaciers.
(i) Write the balanced chemical equation to prepare ammonia gas in the laboratory by using an alkali.
(ii) State why concentrated sulphuric acid is not used for drying ammonia gas.
(iii) Why is ammonia gas not collected over water?
[3]
(b)
(i) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
(ii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.
[3]
(c) For the preparation of hydrochloric acid in the laboratory:
(i) Why is direct absorption of hydrogen chloride gas in water not feasible?
(ii) What arrangement is done to dissolve hydrogen chloride gas in water?
[2]
(d) For the electro-refining of copper:
(i) What is the cathode made up of?
(ii) Write the reaction that takes place at the anode.
[2]
Hydrogen Chloride occurs in the free state
True
False
- HI
- HCl
- HBr
- HF
Which of the following is/was name given to the solution of Hydrogen chloride in water?
Hydrochloric Acid.
Marine Acid.
Muriatic Acid.
All of the above.
Where does HCl occur naturally as a gas?
In volcanic eruptions.
In sea water.
In the earths crust.
In glaciers.
The name "hydrogen chloride" was given by
Glauber
Davy
Joseph Priestly
Lavoisier
- Li2O, Li2O2
- Li2O, Li3N
- Li2O only
- Li3N only
- Acetic acid is the systematic name of vinegar
- The systematic names of acids are formed by dropping -e of the name of parent alkane and adding -oic acid.
- O− | Me−C−OH is an unsaturated compound
- Prefixes like n-, iso, sec-, tert, neo-, etc., are used in IUPAC system