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What is calcination?
Concept: Oxidation Reduction
Purification of aluminium by electrolytic refining is carried out by
(a)Hoope process
(b)Hall process
(c)Baeyer process
(d)Serperck process
Concept: Occurrence of Metals
Draw a neat, well labelled diagram of electrolytic cell for extraction of aluminium
Concept: Occurrence of Metals
Identify molecularity of following reaction:
\[\ce{C2H5I_{(g)} -> C2H_{4(g)} + HI_{(g)}}\]
Concept: Molecularity of Elementary Reactions
What is half life of first order reaction if time required to decrease concentration of reactants from 0.8 M to 0.2 M is 12 hours?
Concept: Integrated Rate Equations
For the reaction 2NOBr → 2NO2 + Br2, the rate law is rate = k[NOBr]2. If the rate of a reaction is 6.5 × 10–6 mol L–1 s–1, when the concentration of NOBr is 2 × 10–3 mol L–1. What would be the rate constant of the reaction?
Concept: Integrated Rate Equations
A reaction occurs in the following steps:
Step 1: \[\ce{NO_{2(g)} + F_2 -> NO2F_{(g)} + F_{(g)}}\] (slow)
Step 2: \[\ce{F_{(g)} + NO_{2(g)} -> NO_2F}\] (Fast)
- Write the equation of overall reaction.
- Write the rate law.
- Identify reaction intermediate.
Concept: Rate of Reaction and Reactant Concentration
Define molecularity of reaction.
Concept: Molecularity of Elementary Reactions
What are interhalogen compounds?
Concept: Oxygen and Compounds of Oxygen
Hot and concentrated alkali NaOH reacts with chlorine to form _______.
Concept: P - Block Group 17 Elements >> Chlorine
Write the order of ionic character of halides with monovalent metal (M).
Concept: Chemical Properties of Elements of Groups 16, 17 and 18
Discuss industrial method of preparation of sulfur dioxide from zinc sulfide and iron pyrites.
Concept: Occurrence of Elements of Groups 16, 17 and 18
Write three physical properties of sulfuric acid.
Concept: Oxoacids
Write any two characteristics of interhalogen compounds.
Concept: Oxygen and Compounds of Oxygen
Write two uses of neon.
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements
How is nitric acid prepared by Ostwald’s process?
Concept: p-Block elements of Group 15 Elements >> Nitric Acid
Explain the nature of zinc oxide with the help of the reactions.
Concept: P - Block Group 16 Elements >> Simple Oxides
Write the molecular formula and structures of the peroxy monosulphuric acid.
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
What happens when dilute sulphuric acid is treated with Fe
Concept: P - Block Group 16 Elements >> Sulphuric Acid
What happens when dilute sulphuric acid is treated with CaF2
Concept: P - Block Group 16 Elements >> Sulphuric Acid
