Chemistry 2014 Solved Paper Previous Year Question ICSE

Chemistry 2014 Solved Paper Previous Year Question 

Chemistry 2014 Solved Paper Previous Year Question ICSE with Sample Paper for 2020 and Other Previous Year Solved Question for practice so that student of Class 10th ICSE can achieve their goals in next exam of council. Sample paper for Chemistry for 2020 exam also given . Hence by better practice and Solved Question Paper of Previous Year including 2014 is very helpful for ICSE student. By the practice of Chemistry 2014 Solved Question Paper ICSE Previous Year you can get the idea of solving. Try Also other year except Chemistry 2014 Solved Question Paper ICSE Previous Year for practice. Because only Chemistry 2014 Solved Question Paper ICSE Previous Year is not enough for preparation of council exam.

Chemistry 2014 Solved Paper Previous Year Question

(Two Hours)

Answers to this Paper must be written on the paper provided separately.
You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the Question Paper.
The time given at the head of this Paper is the time allowed for writing the answers.
Section I is compulsory. Attempt any four questions from Section II.
The intended marks for questions or parts of questions are given in brackets [ ].

Previous Year Solved Question Paper Chemistry 2014 

SECTION  I  (40 Marks)

(Attempt all questions from this Section)

Question 1:
(a) Choose the correct answer from the options given below:

    1. Ionisation Potential increases over a period from left to right because the:
      (A) Atomic radius increases and nuclear charge increases
      (B) Atomic radius decreases and nuclear charge decreases
      (C) Atomic radius increases and nuclear charge decreases
      (D) Atomic radius decreases and nuclear charge increases.
    2. A compound X consists of only molecules. Hence X will have:
      (A) A crystalline hard structure
      (B) A low melting point and low boiling point
      (C) An ionic bond
      (D) A strong force of attraction between its molecules.
    3. .When fused lead bromide is electrolysed we observe:                                                                   (A) a silver grey deposit at anode and a reddish brown deposit at cathode                                     (B) a silver grey deposit at cathode and a reddish brown deposit at anode                                     (C) a silver grey deposit at cathode and reddish brown fumes at anode                                          (D) silver grey fumes at anode and reddish brown fumes at cathode.
    4. The main ore used for the extraction of iron is:                                                                               (A) Haematite       (B) Calamin                                                                                                       (C) Bauxite            (D) Cryolite
    5. Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as:                                                                                                             (A) smelting            (B) ore dressing                                                                                                 (C) calcination       (D) bessemerisation
    6. If an element A belongs to Period 3 and Group II then it will                                                           (A) 3 shells and 2 valence electrons                                                                                             (B) 2 shells and 3 valence electrons                                                                                            (C) 3 shells and 3 valence                                                                                                             (D) 2 shells and 2 valence electrons
    7. The molecule containing a triple covalent bond is:                                                                         (A) ammonia        (B) methan                                                                                                           (C) water                (D) nitrogen
    8. The electrolyte used for electroplating an article with silver is:                                                        (A) silver nitrate solution                       (B) silver cyanide solution                                                    (C) sodium argentocyanide solution   (D) nickel sulphate solution
    9. Aluminium powder is used in thermite welding because:                                                              (A) it is a strong reducing agent        (B) it is a strong oxidising agent                                           (C) it is corrosion resistant                 (D) it is a good conductor of heat
    10. The I.U.PA.C. name of acetylene is:                                                                                                  (A) propane         (B) propyne                                                                                                        (C) ethene            (D) ethyne                                         [10]

(b) Fill in the blanks from the choices given within brackets:

    1. The basicity of Acetic Acid is ………….. (3, 1, 4)
    2. The compound formed when ethanol reacts with sodium is …………. (sodium ethanoate, sodium ethoxide, sodium propanoate).
    3. Quicklime is not used to dry HCl gas because ………….. (CaO is alkaline, CaO is acidic, CaO is neutral).
    4. Ammonia gas is collected by (an upward displacement, of air, a downward displacement of water, a downward displacement of air)
    5. Cold, dilute nitric acid reacts with copper to form …………… (Hydrogen, nitrogen dioxide, nitric oxide). [5]

(c) Give one word or phrase for the following:

  1. The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.
  2. Formation of ions from molecules.
  3. Electrolytic deposition of a superior metal on a baser metal.
  4. icse-previous-papers-with-solutions-for-class-10-chemistry-2014.
  5. The amount of energy released when an atom in the gaseous state accepts an electron to form an anion. [5]

(d) Match the options A to E with the statements (i) to (v):           [5]

A alkynes (i) No. of molecules in 22.4 dm3 of carbon dioxide at s.t.p.
B alkane (ii) An element with electronic configuration 2, 8, 8, 3
C iron (iii) CnH2n+2
D 6.023 × 1023 (iv) CnH2n-2
E metal (v) The metal that forms two types of ions

(e) Write balanced equations for the following:
(i) Action of heat on a mixture of copper and concentrated nitric acid.
(ii) Action of warm water on magnesium nitride.
(iii) Action of concentrated sulphuric acid on carbon.
(iv) Action of dilute hydrochloric acid on sodium sulphide.
(v) Preparation of ethane from sodium propionate.        [5]

Read Next 👇 Click on Page Number Given Below 👇

Leave a comment