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Sodium peroxide which is yellow solid, when exposed to air becomes white due to the formation of:

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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
Amongst baking soda, caustic soda and washing soda carbonate anion is present in :
 
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
One of the by-products formed during the recovery of NH3 from Solvay process is:
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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
Which one of the following compounds is used as a chemical in certain type of fire extinguishers
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?
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
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
The metal nitrate that liberates NO2 on heating
HARD
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Lithium nitrate and sodium nitrate, when heated separately, respectively, give
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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;
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Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Which product is formed in the following reaction?

2 KO 2 + S → Heat Product
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Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Reagent used as fixer in photography
HARD
Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements

Which one halide has highest melting point?

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Chemistry>Inorganic Chemistry>The s-Block Elements>Important Compounds of Group 1 Elements
Nitrogen dioxide cannot be prepared by heating.