ICSE Chemistry Specimen Paper 2026 Class 10: CISCE Chemistry Sample Paper, Download PDF

Category

Details

Conducting Body

Council for the Indian School Certificate Examinations (CISCE)

Exam Name

ICSE Class 10 Chemistry

Academic Session

2025–26

Exam Date

11 March 2026

Paper Type

Theory

Total Marks

80 Marks (Internal Assessment: 20 Marks)

Official Website

cisce.org

Question Number

Questions

Marks

1

Choose the correct answers to the questions from the given options. 

(Do not copy the question, write the correct answers only.)

(i) Which of the following will dissociate in aqueous solution, to give a positive ion other than hydronium ion, and a negative ion other than hydroxyl ion? 

(a) KOH 

(b) dil. HCl 

(c) NaCl 

(d) CH3COOH

(ii) A compound P is heated in a test tube with sodium hydroxide solution. A red litmus paper held at the mouth of the test tube turns blue. Which of the following could compound P be? 

(a) Zinc sulphate 

(b) Copper sulphate 

(c) Ferrous sulphate 

(d) Ammonium sulphate

(iii) Assertion (A): Aqueous solution of potassium chloride can conduct electricity. 

Reason (B): Conduction of electric current is due to the presence of free ions. 

(a) (A) is true and (R) is false. 

(b) (A) is false and (R) is true. 

(c) Both (A) and (R) are true and (R) is the correct explanation of (A). 

(d) Both (A) and (R) are true, but (R) is not the correct explanation of (A).

(iv) Identify the ion that contain one lone pair of electrons

(v) Four reactions are shown below in the diagram:

Which reactions produce water? 

(a) 1 and 2 

(b) 1 and 3 

(c) 3 and 4 

(d) 2 and 3

(vi) When compound X reacts with dilute sulphuric acid, it releases a gas that turns acidified potassium dichromate solution from orange to green. Which of the following could be compound X? 

(a) Lead nitrate 

(b) Copper carbonate 

(c) Sodium chloride 

(d) Potassium sulphite

(vii) The volume occupied by 2 moles of a gas at STP is: 

(a) 22.4L 

(b) 2.24L 

(c) 44.8L 

(d) 4.48L 

(viii) Identify from the following metal oxide which can react with an acid as well as an alkali. 

(a) Silver oxide 

(b) Calcium oxide 

(c) Copper(II) oxide 

(d) Aluminium oxide

(ix) The structures of four hydrocarbons are shown below: 

How many isomers of butene are shown in the above structures? 

(a) 1 

(b) 2 

(c) 3 

(d) 4

(x) Which element amongst the following has the largest atomic radius? 

(a) Al 

(b) S 

(c) Mg 

(d) Na

(xi) For which pH change is there the maximum increase in acidity?

(xii) The equation below shows the reaction between element ‘X’ and dilute sulphuric acid.

Which particles are responsible for conducting electricity in dilute sulphuric acid and compound XSO4? 

(a) Electrons 

(b) Only positive ions 

(c) Only negative ions 

(d) Both positive and negative ions

(xiii) Methanol and ethanol belong to the same homologous series. What does this statement mean? 

(a) Their molecules contain atoms only of carbon and hydrogen. 

(b) Their molecules have the same number of carbon atoms. (c) They have the same functional group. 

(d) They have the same relative molecular mass.

(xiv) The ratio between the volumes occupied by 22 grams of carbon dioxide and 10 grams of hydrogen gas is: 

(a) 2.2 :1 

(b) 1: 2.2 

(c) 1:10 

(d) 10:1

(xv) In the process of Electrorefining of Copper shown in the diagram below, which of the following statements is correct?

(a) The anode is made of pure Copper. 

(b) The cathode is made of impure Copper. 

(c) Copper is deposited at the anode. 

(d) Copper ions from the anode move to the cathode and get deposited as pure Copper.

15

2

(i) Electroplating steel objects with silver involves a three-step process. 

step 1 A coating of copper is applied to the object. 

step 2 A coating of nickel is applied to the object. 

step 3 The coating of silver is applied to the object. 

(a) 

A diagram of the apparatus used for 

step 1 is shown. 

1. The chemical process taking place on the surface of the object is Cu2 + (aq) + 2e-  Cu(s) What is the observation seen on the surface of the object? 

2. Explain why the concentration of copper ions in the electrolyte remains constant throughout  step1. 

(b) Give two changes which would be needed in order to coat nickel onto the object in step 2.

 (c) Write down the reaction taking place at the positive electrode during step 3. 

(ii) Identify the following:

(a) A bond formed between two atoms by sharing of a pair of electrons, with both electrons being provided by the same atom. 

(b) A salt formed by the complete neutralisation of an acid by a base. 

(c) A reaction in which the hydrogen of an alkane is replaced by a halogen.

(d) The energy required to remove an electron from a neutral gaseous atom. 

(e) A homogenous mixture of two or more metals or a metal and a nonmetal in a definite proportion in their molten state. 

(iii) Complete the following by choosing the correct answers from the bracket:

(a) When dilute sulphuric acid reacts with zinc granules, the gas evolved is __________ (hydrogen / carbon dioxide), which can be tested using a burning splint. 

(b) A solution of copper(II) sulphate in sodium hydroxide solution forms a __________ (pale blue / green) precipitate. (c) In methane, each hydrogen atom share(s) __________ (one / two) electron(s) with the central carbon atom to complete its valence shell. 

(d) The electron affinity of element X is greater than that of element Y. The oxidising power of X is likely to be ________ (more / less) than that of element Y. 

(e) The naturally occurring compound of a metal from which the metal can be extracted is called its _________ (ore / mineral). 

(iv) Match Column A with Column B

(v) (a) Give the IUPAC name of the following organic compounds:

(b) Draw the structural diagram for the following compounds: 1. but-2-yne 

2. 1, 1, 1, trichloro methane 

3. pentan -2-ol

ICSE Specimen Class 10 Physics Paper 2026 PDF