NCERT Exemplar Problems Class 12 Chemistry Chapter 4 Chemical Kinetics Multiple Choice Questions Single Correct Answer Type Question 1. The role of a catalyst is to change (a) Gibbs energy of reaction (b) enthapy of reaction (c) activation energy of reaction (d) equilibrium constant Solution: (c) A catalyst lowers the activation energy of a reaction.…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 3 Electrochemistry Multiple Choice Questions Single Correct Answer Type Question 1. Which cell will measure standard electrode potential of copper electrode? Solution: (c) When copper electrode is connected to standard hydrogen electrode, it acts as cathode and its standard electrode potential can be measured. To calculate the standard…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 2 Solution Multiple Choice Questions Single Correct Answer Type Question 1. Which of the following unit is useful in relating concentration of solution with its vapour pressure? (a) Mole fraction (b) Parts per million (c) Mass percentage (d) Molality Solution: (a) Mole fraction is useful in’relating vapour pressure…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 1 Solid State Multiple Choice Questions Single Correct Answer Type Question 1. Which of the following condition favours the existence of a substance in the solid state? (a) High temperature (b) Low temperature (c) High thermal energy (d) Weak cohesive forces Solution: (b) At low temperature substance exists…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 1: Sets Chapter 2: Relations and Functions Chapter 3: Trigonometric Functions Chapter 4: Principle of Mathematical Induction Chapter 5: Complex Numbers and Quadratic Equations Chapter 6: Linear Inequalities Chapter 7: Permutations and Combinations Chapter 8: Binomial Theorem Chapter 9: Sequence and Series Chapter 10: Straight Lines Chapter 11:…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 16 Probability Short Answer Type Questions Q1. If the letters of the word ALGORITHM are arranged at random in a row what is the probability the letters GOR must remain together as a unit? Sol: We have word ALGORITHM Number of letters = 9 Q2. Six new employees,…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 15 Statistics Short Answer Type Questions Q1. Find the mean deviation about the mean of the distribution: Size 20 21 22 23 24 Frequency 6 4 5 1 4 Q2. Find the mean deviation about the median of the following distribution: Marks obtained 10 11 12 14…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 14 Mathematical Reasoning Q1. Which of the following sentences are statements? Justify. (i) A triangle has three sides. (ii) O is a complex number. (iii) Sky is red, (iv) Every set is an infinite set. (V) 15 +8>23 (vi) y+9=7 (vii) Where is your bag? (viii) EVery…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 12 Introduction to Three Dimensional Geometry Short Answer Type Questions Q1. Locate the following points: (i) (1,-1, 3), (ii) (-1,2,4) (iii) (-2, -4, -7) (iv) (-4,2, -5) Sol: Given, coordinates (i) (1,-1, 3), (ii) (-1,2,4) (iii) (-2, -4, -7) (iv) (-4,2, -5) Q2. Name the octant in…
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NCERT Exemplar Problems Class 11 Mathematics Chapter 11 Conic Sections Short Answer Type Questions Q1. Find the equation of the circle which touches the both axes in first quadrant and whose radius is a. Sol: Given that the circle of radius ‘a’ touches both axis. So, its centre is (a, a). Q2. Show that…
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