CHEMISTRY TARGET
QUESTION PAPER ICSE - 2024
Topic: Test Series 10th ICSE AY:-2023-24
Section A (Attempt all questions from this section)
Question 1 (Select the correct answers to the questions from the given options) [15]
i) Identify the correct statement from the following
a) Group 1 elements have highest metallic character b) Group 1 elements have highest I.P
c) Group 1 elements have highest E.N d) Group 1 elements have smallest atomic size
ii) Which amongst the following is a reduction reaction
a) Fe2+ → Fe3+ b) Sn2+ → Sn c) Cl- → Cl (d) Cu→ Cu2+
iii) The correct order of electron affinity is
a) I>Br>Cl>F b) F>Cl>Br>I c) Cl>F>Br>I d) Cl>Br>F>I
iv) Pick up a pair of colourless cation and anion among the following pairs
a) Cu2+, Br- b) Ni2+, S2- c) Ca2+, SO42- d) Fe3+, Cl-
v) In the electrolysis of lead bromide using graphite electrodes, electrolytic cell used is made up of silica
crucible because
a) It cannot with stand high temperature b) It is non reactive
c) It is a good conductor of electricity d) All of the above
vi) The salt formed when potassium hydroxide reacts with aluminium oxide
a) Potassium Chloride b)Sodium Aluminate c) Potassium Aluminate (d) Aluminium Chloride
vii) Which of the following holds true for electrovalent compounds
a) Have low melting and boiling points
b) Undergo electrolytic dissociation on passage of electric current
c) Are soluble in organic solvents
d) Exist in solids, liquids and gases
viii) The molecular formula of an organic compound is C₈H₆O₄ and its empirical formula weight is 83. Its
empirical formula is: [C=12,H=1,O=16]
a) C₈H₆O₄ b) C₄H₃O₂ c) C₃H₃O₂ d) CHO
ix) Which of the following elements will form an acidic oxide?
a) An element with atomic number 7 b) An element with atomic number 3
c) An element with atomic number 12 d) An element with atomic number 19
x) When a metal oxide is dissolved in water, the solution formed has a high concentration of ____________
a) H⁺ b)H₃O⁺ c) OH⁻ d) O²⁻
xi) Which of the following elements gains electrons with difficulty during the electrolysis process
a) Potassium b) Zinc c) Mercury d) Lead
xii) Which of the following metallic electrodes does not take part in an electrolytic reaction?
a) Cu b) Ag c) Pt d) Ni
Page # 1
For admissions and queries, contact us: +91 750 750 7689
CHEMISTRY TARGET
QUESTION PAPER ICSE - 2024
Topic: Test Series 10th ICSE AY:-2023-24
xiii) Sodium and sodium ions:
a) are chemically same b) have same number of electrons
c) have same number of protons d) have stable electronic configuration
xiv) When an electron is removed from the valence shell
a) energy is released b) energy is absorbed c) energy remains same d) none of the above
xv) Electrons are getting added to the atom of an element Y. Which electrode will Y migrate to, during the
process of electrolysis
a) Anode b) Cathode c) Reducing electrode (d) Both anode & cathode
Question 2
(a) State one relevant observation for each of the following: [5]
i) Concentrated sulphuric acid is added to a beaker containing sugar.
ii) Ammonium chloride is warmed with powdered calcium hydroxide.
iii) Carbon powder is sprinkled over hot concentrated nitric acid.
iv) At the anode, when impure copper rod is refined electrolytically with copper sulphate solution.
v) Copper oxide is added slowly to warm dilute sulphuric acid and stirred.
(b) Write a balanced chemical equation for each of the following: [5]
i) Reaction of sulphur with concentrated nitric acid.
ii) Reaction of calcium bicarbonate with hydrochloric acid.
iii) Reaction of chlorine with ethene in an inert solvent.
iv) Nitride of a divalent element is treated with warm water.
v) Ammonia is catalytically oxidized.
(c) i) Give one relevant reason for each of the following: [3]
1. Alumina is reduced electrolytically rather than by using a reducing agent like carbon
2. Ammonia in the liquefied form is neutral.
3. The electrolytic cell for conducting electrolysis of molten lead bromide is made of silica.
ii) A gas cylinder can hold 100 g of hydrogen gas under certain conditions of temperature and pressure. If an
identical cylinder with the same capacity can hold 400 g of gas ‘P’ under the same conditions of
temperature and pressure, find: [2]
1. the vapour density of gas 'P'. 2. the molecular weight of gas "P".
(d) Give the scientific terms defined by the following statements: [5]
i) The substance, in its aqueous or molten state allows the passage of electricity and gets decomposed.
ii) The pair of electrons in an atom that does not take part in a chemical bond formation.
iii) The property of certain elements whereby its atoms can form long straight chain, branched chain, or
cyclic chains by self-linking with other atoms of the same element.
iv) An ionic compound which dissociates in aqueous solution to yield a positive ion other than H+ ion and a
negative ion other than OH- ion
v) The formula of a compound which shows the simplest whole number ratio between the atoms of the
elements in the compound.
Page # 2
For admissions and queries, contact us: +91 750 750 7689
CHEMISTRY TARGET
QUESTION PAPER ICSE - 2024
Topic: Test Series 10th ICSE AY:-2023-24
(e) i) Draw the structural formula for the following: [3]
1) propanoic acid 2) 1,2-dichloroethane 3) butyne
ii) Name the following organic compounds in IUPAC system: [2]
1) 2)
Section B (Solve any 4 questions)
Question 3
a) Identify the chemical properties of the compounds shown in bold in the following reactions: [3]
i) MgSO3 + 2HCI → MgCl₂+ H₂O + SO₂
ii) 3Cu + 8HNO3 →3Cu(NO3)₂ + 4H₂O + 2NO
iii) 2NH3 + 3CuO →3Cu + 3H₂O + N₂
b) Observe the diagram given below which
illustrates the laboratory set up for the preparation
of an acid. Answer the questions that follow:[3]
i) Name the reactant 'B'.
ii) Name the product 'C'.
iii) Why is cold water poured over the collection
flask?
(c) Choose the appropriate term for the following from the brackets. [2]
(i) An aqueous solution of ammonia. [liquid ammonia, liquor ammonia]
(ii) A group derived from a parent alkane by loss of a hydrogen atom.[functional, alkyl]
(d) The following hydrocarbons are isomers 'A' and 'B'. [2]
(i) Explain why these two hydrocarbons are isomers.
(ii) Give the IUPAC name of the hydrocarbon B.
Question 4
(a) State your observation when the pairs of compounds are reacted with reagents given in brackets [3]
(i) Sodium Nitrate solution and Sodium Sulphate solution [using Barium Chloride solution]
(ii) Calcium Chloride solution & Ferrous Chloride solution [using Sodium Hydroxide solution]
(iii) Sulphur Dioxide & Carbon Dioxide gases [using acidified Potassium Dichromate solution]
Page # 3
For admissions and queries, contact us: +91 750 750 7689
CHEMISTRY TARGET
QUESTION PAPER ICSE - 2024
Topic: Test Series 10th ICSE AY:-2023-24
(b) Define the following terms: [3]
i) Base ii) Electrovalent bond iii) Strong electrolyte
(c) From the compounds / elements given in the box, choose the one that best answers the statements
mentioned below: [2]
[Copper Sulphate, Ammonia, Ethene, Chlorine, Lead Carbonate, Graphite, Ethane, Copper Carbonate]
(i) Burns with a green flame in an atmosphere of oxygen and leaves no residue.
(ii) Leaves behind a yellow residue on heating strongly.
(iii) Is an unsaturated hydrocarbon.
(iv) A solution of which forms a blue precipitate with sodium hydroxide when added drop by drop to it.
(d) Name the following with respect to the Modern Periodic Table: [2]
i) The element with largest atomic radius in the third period.
ii) The most electropositive element of the second period.
Question 5
(a) A hydrocarbon on analysis was found to contain 2.2% hydrogen, 26.6% carbon and 71.2% oxygen.
Calculate the following: [3]
i) The empirical formula of the compound.
ii) The molecular formula of the compound if its relative molecular mass is 90. [C-12, H-1, 0-16].
(b) Give a balanced chemical equation for each of the following: [3]
i) Catalytic hydrogenation of ethene.
ii) Reaction of ethane with chlorine to form monochloro ethane.
iii) Thermal decomposition of nitric acid.
(c) Given below is a section of the Periodic Table. The letters shown in the table are not the actual symbols
of the elements. Answer the questions that follow: [4]
Group IA II A III A IV A VA VI A VIII A 0
number 1 2 13 14 15 16 17 18
Period 1 F
Period 2 A B G
Period 3 D J E C I
Period 4 H
[Note: Both letter and the name of the element are required for Questions (i) and (ii)]
i) The element which has the highest ionization potential.
ii) The element which is the most electronegative.
iii) Write the formula of the compound formed between E and B.
iv) Draw the electron dot diagram for the compound formed between D and I. (Note: Represent the
electrons by dot and cross for different atoms)
Question 6
(a) Name the underlined word/words: [3]
(i) A non-metal which prevents the heat loss by radiation in electrolytic reduction of alumina.
(ii) The oxidized element in magnesium chloride,
(iii) An acid salt formed by the reaction of sodium hydroxide and dilute sulphuric acid.
Page # 4
For admissions and queries, contact us: +91 750 750 7689
CHEMISTRY TARGET
QUESTION PAPER ICSE - 2024
Topic: Test Series 10th ICSE AY:-2023-24
(b) Write a balanced chemical equation for each of the following conversions: [3]
(i) Aluminium Hydroxide to Alumina.
(ii) Hydrogen to Ammonia.
(iii) Sodium Chloride to Sodium Sulphate at a temperature of > 200 °C.
(c) An article is electroplated with silver using aqueous sodium argento cyanide solution as an electrolyte.
Answer the following questions: [4]
(i) Describe the changes that occur at the anode with respect to the mass.
(ii) Write the electrode reaction taking place at the cathode.
(iii) Silver nitrate solution is not preferred as an electrolyte. Give a reason.
(iv) Give one advantage of electroplating.
Question 7
a) Draw the electron dot structure of the following: (Atomic No.: C=6, CI-17, H-1, N=7)
[Note: Represent the electrons by dot and cross for different atoms in each case] [3]
i) Sodium Oxide ii) Carbon tetrachloride iii) Ammonium ion
b) Atomic number of an element is 20. Answer the questions given below: [3]
i) How many valence electrons does this element have?
ii) To which period does it belong?
iii) Will this element behave as an oxidizing or as a reducing agent?
c) One mole of SO2 occupies 24 dm3 at room temperature and pressure. Calculate the following at room
temperature & pressure. [S=32, O=16] [4]
i) The mass of 6 litres of SO2 ii) The volume occupied by 80 g of SO2
iii) The number of molecules in 0.64 g of SO2 iv) The gram molecules in 16 g of SO2
Question 8
a) Fill in the blanks from the choices given in the brackets: [5]
i) Ionisation potential_____ down a group. [increases, decreases]
ii) The reaction of methane gas with excess chlorine in the presence of U.V. light to form CCl4 is considered
as a/an ________[substitution, addition] reaction.
iii) The number of hydrogen ions which can be produced per molecule of an acid in an aqueous solution is
termed as ____________[acidity of a base, basicity of an acid]
iv) The hydroxide which is insoluble in excess of ammonium hydroxide solution is [lead hydroxide, zinc
hydroxide]
v) The vapour density of NH3 is ______[34,8.5] (Atomic mass: N=14, H-1)
b) Name the gas produced during each of the following reactions: [5]
i) At the anode during electrolysis of acidulated water.
ii) Copper is treated with hot concentrated nitric acid.
iii) Ammonia is burnt in an atmosphere of oxygen.
iv) Nitric oxide combines with oxygen at a temperature around 50°C.
v) Sodium hydrogen carbonate is treated with dilute hydrochloric acid.
Page # 5
For admissions and queries, contact us: +91 750 750 7689
