Which functional group do you think can be present in an organic compound having the molecular formula C5H10O2? Write the formula of the organic compound.

Carboxylic group: (-COOH) C4H9COOH

Which functional group do you think can be present in an organic …

Why is graphite used for making dry cell electrodes but diamond is not?

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Which of the following will give addition reaction and why?
C₄H₁₀, C₂H₆, C₂H₄, CH₄, C₃H₈, C₃H_4.

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Identify the oxidising agent (oxidant) in the following reaction.
3Fe + 4H₂O → Fe₃O₄ + 4H₂

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Aluminium burns in chlorine to form aluminium chloride (AlCl₃). Write a balanced chemical equation for this reaction.

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What is the next higher homologue of methanol (CH₃OH)?

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Give the name and chemical formula of one ore of copper.

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Balance the following chemical equation:

$\text{Pb(NO}_{3})_{2} \text{(s)}\xrightarrow[]{\text{heat}}\text{PbO(s) + NO}_{2} \text{(g)} + \text{O}_{2}\text{(g)}$

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How is common salt obtained from sea-water?

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Balance the following equations:
$\text{BaCl}_2\ +\ \text{H}_2\text{SO}_4\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{Ba}\text{SO}_4\ +\ \text{HCl}$

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Why does carbon form compounds mainly by covalent bonding?

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