Students can refer to the following Sample Paper ICSE Class 10 Chemistry Set B with Answers provided below based on the latest syllabus and examination guidelines issued for ICSE Chemistry. All specimen papers have been prepared covering all chapters given in ICSE Chemistry book for Class 10. You should also refer to ICSE Class 10 Chemistry Solutions.
Sample Paper ICSE Class 10 Chemistry Set B with Answers
CHEMISTRY CLASS X
MM 80 Time 2 hrs
SECTION I (40 MARKS)
(Attempt all the questions from this section)
QUESTION 1
(A)NAME THE FOLLOWING- ( 5marks)
(i)A white solid used to dry Ammonia gas in the laboratory preparation of ammonia.
(ii)The coloured ppt formed when ammonia solution is added drop wise to blue vitriol solution.
(iii)The product formed at the anode during the electrolysis of acidified water using platinum electrodes.
(iv)The branched chain isomer of butane ( IUPAC name)
(v)The oxidized product when carbon reacts with conc Nitric acid.
(B) MENTION THE NAME OF THE ANION IN THE FOLLOWING- (5marks)
(i) The salt solution reacts with AgNO3 solution to give a white ppt insoluble in dil HNO3.
(ii)The salt solution reacts with dil H2SO4 & on heating evolves a gas that turns pink acidified KMNO4 to clear colour less.
(iii)The salt solution reacts with conc H2SO4 & Copper turnings gives a gas that turns KI paper brown and liberates violet vapours.
(iv)The salt solution reacts with Ba(NO3)2 solution to give white ppt insoluble in dil HNO3
(v) The salt solution reacts with dil H2SO4 & on heating gives rotten egg smelled gas.
(C) DO THE FOLLOWING CONVERSIONS- (5marks)
(i)Methane —→Carbon dioxide +water
(ii)Copper nitrate–→copper oxide+ nitrogen dioxide + oxygen
(iii)Ethene-→ ethane
(iv)ethyne-→tetrachloroethane
(v)methane-→chloroform
(D)COMPLETE THE FOLLOWING –(5marks)
(i) Potassium sulphite +dil HCl→
(ii)Copper oxide + conc HCl→
(iii)Ammonium chloride + calcium hydroxide→
(iv)Nitrogen +Hydrogen→
(v)Ammonia + oxygen→
(E)STATE THE OBSERVATIONS FOR EACH OF THE FOLLOWING- (10marks)
(i)Iron
(II) Sulphide is heated with dil H2SO4 & the gas passed through lead acetate solution
(ii)Dil HCl is added to lead nitrate crystals.
(iii)Methane & ethene bubbled respectively into Bromine solution in CCl4
(iv)Ammonium hydroxide is added to ferrous ion and lead ion( drop wise)
(v)Copper is added to dil nitric acid.
(F)GIVE A SUITABLE WORD OR PHRASE FOR THE FOLLOWING-(5marks)
i)The compound formed by partial replacement of hydrogen ion of an acid by a basic radical.
ii)Hydroxy derivatives of alkane obtained by replacement of H-atom of alkane by hydroxyl group.
iii) The process of extraction of metals by electrolysis.
iv)An alkaline earth metal in period 3 of the periodic table.
v) The electrodes that participate in electrolytic reaction.
( G) Draw the isomers of PENTANE write their common name and IUPAC names- ( 5marks)
SECTION II ( 40marks)
(Attempt any FOUR questions)
QUESTION 2
(A) GIVE THE STRUCTURAL FORMULA (5marks)
i) Propan-2-ol
ii) 3-methyl but-1-yne
iii) But-2-yne
iv) Ethan-1-al
v) 2-chloro-4-iodo pentane
(B)COMPLETE THE FOLLOWING STATEMENTS-(5marks)
i)When Ammonia (in excess)&Chlorine are mixed,the chlorine is .
ii)Sulphur is oxidized by hot conc nitric acid to give .
iii)The third member of alkene series is .
iv)The gas which burns with green flame and reduces a heated metallic oxide to a metal is .
v)The ions that imparts acidic properties to an aqueous solution of HCl are _.
QUESTION 3
(A)DO THE FOLLOWING NUMERICAL – ( 5marks)
i)An organic compound contains C=40%,H=6.67%.If the molecular mass of the compound is 30.026 Find its empirical and molecular formula.
( Given C=12.01,H=1.008, O=16.0)
(B)DRAW THE ELECTRON DOT DIAGRAM OF THE FOLLOWING-(5marks)
i)Ammonium ion
ii)Magnesium chloride
QUESTION 4
(A) An inorganic compound is found to have Empirical formula BH3.Calculate its molecular formula when measured mass of the compound is 27.66 ( given B=10.81,H=1)- (5marks)
(B) WITH REFERENCE TO THE PERIODIC TABLE ANSWER THE GIVEN QUESTIONS- (5 marks)
i)The element with maximum non metallic character of period 2
ii)Highly electronegative element of the Periodic table.
iii)Name the group to which element with a valency -2 belongs.
iv)The most metallic element among the following Si,Al,Na,S,Mg
v)Name the element with a least atomic size among the following Mg,Be,Sr,Ca
QUESTION 5
(A)Write equations for the reactions taking place at the two electrodes mentioning clearly the names of the electrode during Electrolysis of – ( 4 Marks)
i)Acidified copper sulphate with copper electrodes
ii)Molten lead bromide using inert electrodes.
(B)ANSWER THE FOLLOWING-(4 marks)
i)Name the product formed at the cathode during the Electrolysis of acidified water.
ii)Name the metallic ions that should be present in the electrolyte when an article made of copper is to be electro plated with silver.
iii)Name the electrolyte used for electroplating an article with silver.
iv)Name the electrode where oxidation takes place.
(C)DRAW THE STRUCTURE OF THE FOLLOWING ( 2 marks )
i)4-ethyl-2-methyl hexane
ii)2,3dimethyl but-2-ene
QUESTION 6
(A) GIVE REASONS-(5 marks)
i)During electroplating of an article, the article is always kept at cathode.
ii)Pure water is non electrolyte while acidified water is an electrolyte.
iii)The electron affinity of Argon is zero
iv)Special funnel arrangement is done for the preparation of HCl acid in lab.
v)Graphite anodes are periodically replaced during Hall heroult’s process.
(B) WRITE THE EQUATION FOR THE FOLLOWING
i) Conversion of Bauxite to Alumina- (3 marks )
ii) Conversion of Alumina to Aluminium ( Reaction at cathode and anode)- (2 marks)