Online Test of Chapter 2 Acid, Bases and Salt MCQ 2 Science| Class 10th Questions : 1. A substance X, turns color of red litmus blue, it will change methyl Orange? i)Yellow ii)Pink iii)Red iv)Colorless 2.A substance Y turns phenolphthalein colorless. It will i)Turns red litmus blue ii)Turns methyl orange yellow iii)Vanishes smell of clove oil … Read more
Online Test of Chapter 2 Acid, Bases and Salt MCQ 1 Science| Class 10th Questions: 1. Basic characteristics of Acid is/are? i) Sour taste ii)Turns blue litmus red iii)Turns red litmus blue iv)Both (i) and (ii) 2.Basic Characteristics of Base is/are? i)Sour taste ii)Turns red litmus blue iii) urns blue litmus red 3.Which acid do we … Read more
Online Test of Chapter 3 Metals and Non-Metals Test 3 Science| Class 10th 1. The border line elements, which neither fit with metals nor with non-metals are known as (a) Metalloids (b) Isotopes (c) Allotropes (d) Alloys 2. A mineral is known as an ore of a metal if the metal (a) can be produced from … Read more
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) … Read more
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 … Read more
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) … Read more
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 … Read more
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 … Read more