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i-Tutor Complete Syllabus Test-4A Chemistry-ICSE (Class IX)

Phase-I

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M.M. : 80 i-Tutor Complete Syllabus Test-4 Time : 3 Hrs. Chemistry-ICSE (Class IX)

SECTION – I (40 MARKS)

ATTEMPT ALL QUESTIONS

1. A. Choose one correct answer from the options given below :

(i) Symbol of tungsten is [1]

(1) Tu (2) Ti

(3) W (4) Sn

(ii) Which of the following gases is evolved when zinc reacts with dilute sulphuric acid? [1]

(1) H2S (2) SO2

(3) H2 (4) SO3

(iii) Freezing point of water is [1]

(1) 100°C (2) –10°C

(3) 0°C (4) –40°C

(iv) Which of the following elements does not contain neutron? [1]

(1) He (2) H

(3) Li (4) B

(v) Which of the following is a noble gas? [1]

(1) Hydrogen

(2) Argon

(3) Chlorine

(4) Oxygen

B. (i) What do you observe when magnesium ribbon is burnt in steam? [2]

(ii) What do you observe when hydrogen is burnt in oxygen? [2]

(iii) What is the valency of hydrogen? [1]

Topics Covered :

Chemistry : Complete Syllabus (Except Chapters/Topics Deleted by ICSE)

Code A Date : 31-01-2021

Chemistry-ICSE (Class IX) i-Tutor Complete Syllabus Test-4A

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C. Fill in the blanks

(i) SI unit of pressure is _____. [1]

(ii) The salts which contain water of crystallisation are called ________. [1]

(iii) Boiling point of water is ______ . [1]

(iv) The temperature –273°C is called ______ . [1]

(v) SI unit of volume is _______ . [1]

D. Identify the following

(i) The colour of precipitate formed when silver nitrate solution is mixed with sodium chloride solution. [1]

(ii) The monovalent ion in zinc bicarbonate. [1]

(iii) The valency of cation in AlPO4. [1]

(iv) The value of x in the given equation on balancing : MnO2 + xHCl → MnCl2 + yH2O + Cl2 [1]

(v) The total number of electrons that can be accommodated in M-shell. [1]

E. Write the balanced chemical equation for the reaction of

(i) Copper with sulphuric acid. [1]

(ii) Ammonia with hydrogen chloride. [1]

(iii) Silver nitrate with common salt. [1]

(iv) Sodium hydroxide with sulphuric acid. [1]

(v) Magnesium with dilute sulphuric acid. [1]

F. Name the following

(i) The liquid known as universal solvent. [1]

(ii) The solution having only two components. [1]

(iii) Alloy of copper and zinc. [1]

(iv) The solvent used in tincture of iodine. [1]

(v) A solution in which no more solute can be dissolved at a given temperature. [1]

G. Draw the electron dot structure of following molecules.

(i) Chlorine [1]

(ii) Nitrogen [1]

(iii) Water [1]

(iv) Ammonia [1]

(v) Methane [1]

H. Identify whether the following statements are true or false.

(i) Symbol of eka–aluminium is Ga. [1]

(ii) The basis of Modern Periodic Table is atomic mass. [1]

(iii) Sodium is a soft metal. [1]

(iv) Group-17 elements of the Modern Periodic Table are known as halogens. [1]

(v) Li, Na and K form a Dobereiner's triad. [1]

i-Tutor Complete Syllabus Test-4A Chemistry-ICSE (Class IX)

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SECTION – II (40 MARKS)

ATTEMPT ANY FOUR QUESTIONS 2. A. Write the balanced chemical reactions for the following. (i) Electrolysis of brine solution [1] (ii) Formation of SO3 from SO2 [1]

(iii) When red hot iron reacts with steam [1] (iv) Formation of water gas from methane [1] B. If a gas occupies 10 L at 77°C and 5 atm, what volume would it occupy at 127°C and 2 atm? [3] C. Fill in the blanks (i) Water is ________ in nature. [1] (ii) Solubility of a solid in a liquid _______ with decrease in size of solute particles. [1] (iii) At constant temperature, volume of a gas ______ on increasing pressure. [1] 3. A. Study the table and answer the following questions

Elements P Q R S T

Electronic Configuration 2, 8, 1 2, 8 2, 6 2, 8, 2 2, 8, 8

(i) Which two elements belong to same group? [1] (ii) Write the chemical formula of the compound formed by elements R and S. [1] (iii) Write the group and period number of element R in the Modern Periodic Table [1] (iv) Which among the above elements is most metallic? [1] (v) What is the valency of Q and P? [1] B. Name the following compounds (i) K2Cr2O7 [1]

(ii) (NH4)2CO3 [1]

(iii) Ca(NO3)2 [1]

(iv) N2H4 [1]

(v) Na2SO4 [1]

4. A. Balance the following chemical equations (i) Ag2CO3 → Ag + O2 + CO2 [1]

(ii) AgOH → Ag + O2 + H2O [1]

(iii) Ba(OH)2 + NH4Cl → BaCl2 + NH3 + H2O [1]

(iv) HCl + Na2SO4 → H2SO4 + NaCl [1]

B. Convert (i) 100 K to °C [1] (ii) 1520 torr to atm [1]

(iii) 2 L to m3 [1]

C. At 27°C temperature and 800 mm of Hg pressure the volume of the fixed mass of a gas is 152.0 cm3. Calculate its volume at STP. [3]

Chemistry-ICSE (Class IX) i-Tutor Complete Syllabus Test-4A

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5. A. Hydrogen prepared in the laboratory from zinc granules consists of a number of impurities. To remove these impurities, hydrogen is passed through certain solutions. Name the impurity/impurities which is removed by passing hydrogen through

(i) AgNO3 solution [2]

(ii) Pb(CH3COO)2 solution [2]

(iii) KOH solution [2]

B. Write the chemical formula and calculate the molecular mass of sodium carbonate and sulphuric acid. [4]

6. A. Complete the following table

(i) Name of particle Mass (kg) Absolute charge

(C) [2]

Electron ______ –1.6 × 10–19

Neutron 1.675×10–27 ______

(ii) What are the α-particles? Write the symbol of α-particles. [2]

B. Mention any three properties of cathode rays. [3]

C. Identify the isotope used in/as

(i) Nuclear fuel [1]

(ii) Treatment of cancer [1]

(iii) Treatment of goitre. [1]

7. A. (i) What do you observe when potassium reacts with water? [1]

(ii) What do you observe when hydrogen gas is passed over the strongly heated copper oxide? [1]

(iii) What is the atomicity of hydrogen? [1]

(iv) Give example of any two solid oxidizing agents. [1]

B. Name the following.

(i) A solution made in the liquid other than water. [1]

(ii) The compound having molecular formula CaSO4 ⋅ 2H2O (common name only) [1]

(iii) The compound having molecular formula MgSO4 ⋅ 7H2O (common name only) [1]

C. Give the chemical formula of

(i) Glucose [1]

(ii) Zinc carbonate [1]

(iii) Potassium phosphate [1]

Edition: 2020-21