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Explore Class 12 Chemistry past and model questions by chapter, year, marks and question type.
440 questions found
What is meant by molasses?
Mention the function of yeast in the fermentation of ethyl alcohol.
Give a difference between absolute alcohol and denatured alcohol.
Identify the compound (M).
Write a chemical reaction for the preparation of (M).
How is (M) converted into propane?
Predict the final product when (M) is treated with in dry ether followed by hydrolysis.
Give a laboratory test reaction of carbonyl compound.
What product is obtained when ethoxyethane is heated with excess HI?
Why are old samples of ether not distilled to dryness in air?
Convert phenol into anisole.
Write down reagents and conditions for reaction (1), reaction (2), reaction (3) and reaction (4).
Identify the compound (Z) giving IUPAC name.
How would you apply Hoffmann's method for the separation of 1°, 2° and 3° amine from their mixture?
Write down a method of preparation of white vitriol.
What happens when white vitriol is heated to 800°C?
Define double salt with an example.
How is lithopone obtained from white vitriol?
Why is zinc considered a non-typical transition metal?
What is Open Hearth process?