Chemistry 2016 Solved Paper Previous Year Question ICSE

Chemistry 2016 Solved Paper Previous Year Question

Chemistry 2016 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 2016 is very helpful for ICSE student. By the practice of Chemistry 2016 Solved Question Paper ICSE Previous Year you can get the idea of solving. Try Also other year except Chemistry 2016 Solved Question Paper ICSE Previous Year for practice. Because only Chemistry 2016 Solved Question Paper ICSE Previous Year is not enough for preparation of council exam.

Chemistry 2016 Solved Paper Previous Year Question

(Two Hours)

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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 2016 

SECTION-I  (40 Marks)

(Attempt all questions from this Section)

Question 1:
(a) Fill in the blanks with the choices given in brackets. [5]

    1. Metals are good ………. (oxidizing agents/reducing agents) because they are electron ……….. (acceptors/donors).
    2. Electrovalent compounds have ………… (high/low) melting points.
 3 Higher the pH value of a solution, the more ……….. (acidic/alkaline) it is.
 4 ………. (AgCl/PbCl2) white precipitate is soluble in excess NH4OH.

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 5Conversion of ethene to ethane is an example of ……….. (hydration/hydrogenation).

(b) Choose the correct answer from the options given below: [5]

1 An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is:

(A) 17            (B) 11          (C) 18         (D) 20

2 .The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:

(A) 1 : 2        (B) 1 : 0.01       (C) 1 : 1       (D) 0.01 : 1

[Given that H = 1, O = 16]

3 .The two main metals in Bronze are:
(A) Copper and zinc           (B) Copper and lead
(C) Copper and nickel       (D) Copper and tin
4. The particles present in strong electrolytes are:
(A) Only molecules           (B) Mainly ions
(C) Ions and molecules   (D) Only atoms
5. The aim of the Fountain Experiment is to prove that
(A) HCl turns blue litmus red
(B) HCl is denser than air
(C) HCl is highly soluble in water
(D) HCl fumes in moist air.

(c) Write balanced chemical equations for each of the following: [5]

  1. Action of warm water on AIN.
  2. Action of hot and concentrated Nitric acid on copper.
  3. Action of Hydrochloric acid on sodium bicarbonate.
  4. Action of dilute Sulphuric acid on Sodium Sulphite.
  5. Preparation of ethanol from Ethyl Chloride.

(d) State your observations when: [5]

  1. Dilute Hydrochloric acid is added to Lead nitrate solution and the mixture is heated.
  2. Barium chloride solution is mixed with Sodium Sulphate Solution.
  3. Concentrated Sulphuric acid is added to Sugar Crystals.
  4. Dilute Hydrochloric acid is added to Copper carbonate.
  5. Dilute Hydrochloric acid is added to Sodium thiosulphate.

(e) Identify the term/substance in each of the following: [5]

    1. The tendency of an atom to attract electrons to itself when combined in a compound.
    2. The method used to separate ore from gangue by preferential wetting.
    3. The catalyst used in the conversion ofethyne to ethane.
    4. The type of reactions alkenes undergo.
    5. The electrons present in the outermost shell of an atom.

(f) (i) A gas of mass 32gms has volume of 20 litres at S.T.P. Calculate the gram molecular weight of the gas.
(ii) How much Calcium oxide is formed when 82g of calcium nitrate is heated? Also find the volume of nitrogendioxide evolved:
2Ca(NO3)2   →   2CaO + 4NO2 + O2
(Ca = 40, N = 14, O = 16) [5]

(g) Match the salts given in Column I with their method of preparation given in Column II: [5]
icse-previous-papers-with-solutions-for-class-10-chemistry-2016

 

(h) (i) Write the IUPAC names of each of the following: [5]
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-1
(ii) Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given:

  1. The ionization potential of Potassium is ………. that of Sodium.
  2. The electronegativity of Iodine is ………… that of Chlorine.

Answer:
(a)

  1. Reducing agents, donors
  2. High
  3. Alkaline
  4. AgCl
  5. Hydrogenation

(b)

  1. (A) 17
  2. (C) 1 : 1
  3. (D) Copper and tin
  4. (B) Mainly ions
  5. (C) HCl is highly soluble in water.

(c)
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-2

(d)

  1. A white precipitate of lead chloride appears which dissolves on heating.
  2. A white insoluble precipitate of Barium sulphate is obtained.
  3. White crystals of sugar turn to a black spongy mass called sugar charcoal.
  4. A brisk effervescence with the release of colourless, odourless, acidic gas that extinguish glowing splint i.e., carbon dioxide gas is evolved.
  5. A colourless gas with smell of burning sulphur i.e., Sulphur dioxide is released. A yellow crystal settles at the bottom i.e., sulphur.

(e)

  1. Electron affinity
  2. Froth Floatation Method (concentration of ore)
  3. Nickel
  4. Addition reaction
  5. Valence electron

(f)
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-3
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-4
(g)
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-5
(h) (i)

  1. Prop-1-ene
  2. Butr-2-yne
  3. Ethan-1-al

(ii)

  1. < (less than)
  2. < (less than)

 Previous Year Solved Question Paper Chemistry 2016 

 SECTION-II (40 Marks)

(Attempt any four questions from this section)

Question 2:
(a) Use the letters only written in the Periodic Table given below to answer the questions that follow: [4]
icse-previous-papers-with-solutions-for-class-10-chemistry-2016

  1. State the number of valence electrons in atom J.
  2. Which element shown forms ions with a single negative charge?
  3. Which metallic element is more reactive than R?
  4. Which element has its electrons arranged in four shells?

(b) Fill in the blanks by selecting the correct word from the brackets: [2]

  1. If an element has a low ionization energy then it is likely to be …………. (metallic/non metallic).
  2. If an element has seven electrons in its outermost shell then it is likely to have the ……….. (largest/smallest) atomic size among all the elements in the same period.

(c) The following table shows the electronic configuration of the elements W, X, Y, Z:

Element W X Y Z
Electronic configuration 2, 8, 1 2, 8, 7 2, 5 1

Answer the following questions based on the table above

(i) What type of Bond is formed between: [2]

1. W and X          2. Y and Z

(ii) What is the formula of the compound formed between: [2]

1. X and Z           2. W and X

Answer:
(a)

  1. No. of Valence electrons in atom J = 5
  2. Element M
  3. Element T is more reactive than R.
  4. Element T has its electrons arranged in four shells

(b)

  1. Metallic
  2. Smallest

(c) (i)

  1. Ionic bond.
  2. Covalent bond.

(ii)
icse-previous-papers-with-solutions-for-class-10-chemistry-2016-1

Question 3:
(a) Write a balanced chemical equation for each the following: [3]

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