EASY
Earn 100

Directions: Each of these questions contains an Assertion followed by reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.

Assertion: H2CO3 is an oxo-acid.

Reason: Oxo-acids are those in which the acidic proton is associated as a hydroxyl group with an oxo group attached to the same atom.

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Important Questions on The s-Block Elements

EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements

Match List-I with List-II

List-I List-II
(a) Sodium Carbonate (i) Deacon
(b) Titanium (ii) Castner-Kellner
(c) Chlorine (iii) van-Arkel
(d) Sodium hydroxide (iv) Solvay

Choose the correct answer from the options given below:

EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Sodium hydroxide is manufactured by
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements

Find A, B and C in the following reactions:

NH3+A+CO2→NH42CO3

NH42CO3+H2O+B→NH4HCO3

NH4HCO3+NaCl→NH4Cl+C

EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Potassium cyanide is made alkaline with NaOH and boiled with thiosulphate ions. The solution is cooled and acidified with HCl and this solution with iron (III)chloride produces :-
HARD
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Which of the following salt would give SO2 with hot and dil H2SO4 and also decolourises Br2 water?
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements

Given below are two statements: One is labelled as Assertion A and the other labelled as Reason R.
Assertion A : Lithium halides are some what covalent in nature.

Reason R : Lithium possess high polarisation capability.

In the light of the above statements, choose the most appropriate answer from the options given below:

MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements

Products (X and Y) of the following reactions (I and II) are :
I. 2NaOH(Cold and dil.)+Cl2⟶NaCl+X+H2O

II. 6NaOH(Hot and conc.)+3Cl2⟶NaCl+Y+3H2O

EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Amongst baking soda, caustic soda and washing soda carbonate anion is present in :
 
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
The gas produced when Zn metal is heated with aqueous NaOH is
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Which among the following gas is bubbled through the brine solution during the preparation of sodium carbonate in Solvay's process?
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
A sodium salt of an unknown anion when treated with MgCl2 gave a white precipitate only upon boiling. Identify the anion.
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
The metal nitrate that liberates NO2 on heating
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
In the preparation of baking soda, H2O and CO2 in ratio is used to react with Na2CO3.
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
One of the by-products formed during the recovery of NH3 from Solvay process is:
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Which one of the following compounds is used as a chemical in certain type of fire extinguishers
HARD
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Lithium nitrate and sodium nitrate, when heated separately, respectively, give
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
The reaction of zinc with excess of aqueous alkali, evolves hydrogen gas and gives
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
On strong heating, the nitrate of which metal does not produce nitrogen dioxide?
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Choose the incorrect statement.
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above 373 K leads to an anhydrous white powder Z. X and Z, respectively, are;