ICSE Class 10 Organic Chemistry — Mock Test (2027)
Free online mock test for Organic Chemistry (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Organic Chemistry chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Neo-heptyl alcohol is correctly represented by which of the following formulas?
- a.$$\begin{array}{c} \mathrm{CH_3} \\ | \\ \mathrm{CH_3} - \mathrm{C} - \mathrm{CHCH_2CH_3} \\ | \\ \mathrm{CH_3} \quad \mathrm{OH} \end{array}$$
- b.$$\begin{array}{c} \mathrm{CH_3} \\ | \\ \mathrm{CH_3} - \mathrm{C} - \mathrm{CH_2CH_2CH_2CH_3} \\ | \\ \mathrm{OH} \end{array}$$
- c.$$\begin{array}{c} \mathrm{CH_3} \\ | \\ \mathrm{CH_3} - \mathrm{C} - \mathrm{CH_2CH_2CH_2OH} \\ | \\ \mathrm{CH_3} \end{array}$$
- d.$$\begin{array}{c} \mathrm{C_2H_5} \\ | \\ \mathrm{C_2H_5} \end{array}$$
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2.Why is soda lime preferred over sodium hydroxide in the laboratory preparation of methane?
- A.Soda lime is cheaper than sodium hydroxide
- B.Soda lime removes water, preventing a reversible reaction
- C.Sodium hydroxide is less reactive than soda lime
- D.Soda lime produces more methane per gram
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3.The organic compound mixed with alcohol to make it spurious is:
- a.Methanoic acid
- b.Methanol
- c.Methanal
- d.Ethanoic acid
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4.What is the IUPAC name of the following compound? ``` H H H O H | | | || | H - C - C - C - C - H | | | Cl H H ```
- A.3-Chloropentan-2-one
- B.5-Chloropentan-2-one
- C.2-Chloropentan-5-one
- D.1-Chloro-4-pentanone
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5.Dehydrogenation of X with alcoholic KOH produces ethene. X is:
- a.Ethylene dichloride
- b.Methyl chloride
- c.Ethyl chloride
- d.None
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