Question
When ammonia is passed over heated copper(II) oxide, a reddish-brown residue is obtained. This shows the
On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is…
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Question
Which of the following is not a constituent of the electrolytic mixture in the Hall-Heroult process?
Which of the following is not a constituent of the electrolytic mixture in the Hall-Heroult process? (a) Al₂O₃ (b) NaAlO₂ (c) Na₃AlF₆…
Question
Electron affinity is maximum in
Electron affinity is maximum in: (a) Magnesium (b) Argon (c) Lithium (d) Bromine
Question
In the reaction S + 2H₂SO₄ → 3SO₂ + 2H₂O, the oxidising agent is
In the reaction S + 2H₂SO₄ → 3SO₂ + 2H₂O, the oxidising agent is: (a) Sulphur (b) Sulphuric acid (c) Sulphur dioxide…
Question
The conversion of ethanol to ethene using concentrated sulphuric acid involves
Conversion of Ethanol to Ethene by the action of concentrated sulphuric acid involves: (a) Dehydration (b) Dehydrogenation (c) Dehydrohalogenation (d) Hydrolysis
Question
The reaction between an alcohol and a carboxylic acid in the presence of concentrated sulphuric acid is called
Reaction of an alcohol with a carboxylic acid in the presence of concentrated H2SO4 is termed as: (a) Halogenation (b) Esterification (c)…
Question
The metal hydroxide which reacts with both acids and alkalis is
The metal hydroxide which reacts with both acids and alkalis to form salt and water is: (a) Calcium hydroxide (b) Magnesium hydroxide…
Question
An alloy of copper, zinc and tin is
Copper, Zinc and Tin are the metals alloyed to form: (a) Duralumin (b) Brass (c) Bronze (d) Solder
Question
Neon has the maximum ionization potential because its outermost shell is
Neon has the maximum ionization potential because its outermost shell is: (a) Unstable (b) Ready to accept electrons (c) Ready to lose…
Question
Unsaturated hydrocarbons undergo
Unsaturated hydrocarbons undergo: (a) Addition reaction (b) Substitution reaction (c) Oxidation reaction (d) Redox reaction