Chapter 3 Metals and Non-Metals MCQ Test 2 Science| Class 10th

Online Test of Chapter 3 Metals and Non-Metals Test 2 Science| Class 10th 1. Which of the following metals forms an amphoteric oxide? (a) Potassium (b) Zinc (c) Calcium (d) Copper 2. Which of the following statements is incorrect? (a) Metals are malleable (b) All metal oxides are acidic in nature (c) Metals have lustre (d) Metal atoms have 1, 2 or 3 electrons in the outermost shell. 3. A sulphide ore is concentrated by (a) washing with wate

Chapter 3 Metals and Non-Metals MCQ Test 1 Science| Class 10th

Online Test of Chapter 3 Metals and Non-Metals Test 1 Science| Class 10th 1. The metal with lowest density is (a) sodium. (b) potassium. (c) lithium. (d) caesium. 2. Which of the following pairs will give displacement reactions? (a) NaCl solution and copper metal (b) MgCI2 solution and aluminium metal (c) FeSO4 solution and silver metal (d) AgNO3 solution and copper metal 3. An element reacts with oxygen to give a compound with a high meltin

Chapter 1 Chemical Reactions and Equations MCQ Test 3 Science| Class 10th

Online Test of Chapter 1 Chemical Reactions and Equations 3 Science| Class 10th 1. The hydrogen and oxygen gas can be obtained from water by (i) Its thermal decomposition (ii) Electrolytic decomposition (iii) Decomposition due to sunlight (iv) Any of these 2. How the colour changes of silver chloride when it is kept in sunlight (i) Turns black (ii) Turns white (iii) Turns red (iv) Turns grey 3. The reaction used in photography is (i) Therma

Chapter 1 Chemical Reactions and Equations MCQ Test 2 Science| Class 10th

Online Test of Chapter 1 Chemical Reactions and Equations 2 Science| Class 10th 1. Write values of a,b,c and d so that following chemical equation is balanced aAl + bHCl → cAlCl3 + dH2 (i) a=1,b=3,c=1,d=3 (ii) a=2,b=6,c=2.d=2 (iii) a=2,b=6,c=2,d=3 (iv) a=2,b=3,c=2,d=3 2. Which of the following reactions satisfies this condition? : Iron nails kept with dilute sulphuric acid and ferric sulphite solution is formed and hydrogen gas is released. (i)

Chapter 1 Chemical Reactions and Equations MCQ Test 1 Science| Class 10th

Online Test of Chapter 1 Chemical Reactions and Equations 1 Science| Class 10th Q1. A chemical reaction has taken place in which of the following process? (i) Ice melts into water (ii) A wet shirt got dried in sunlight (iii) A brown layer is formed over iron rod kept in air (iv) Sugar getting dissolved in water Q2. Which of the following is not a chemical Reaction? (i) Formation of salt solution (ii) Milk turns sour in hot weather (iii) Burning