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Q1) The function f : R → R defined by f(x)=x3+x2 is (a) one to one (b) onto (c) one to one and onto (d) neither one to one nor onto Q2) The function f(x)= x2/|x| if x is not = 0 = 0 if x=0 (a) is not continuous at x = 0 (b) ...
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Q1) The function f : R → R defined by f(x)=x3+x2 is (a) one to one (b) onto (c) one to one and onto (d) neither one to one nor onto Q2) The function f(x)= x2/|x| if x is not = 0 = 0 if x=0 (a) is not continuous at x = 0 (b) ...
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1. Statement-I : Benzoic acid is a weaker acid than formic acid Statement-II : Phenyl group when attached to carbonyl group becomes electron donating. 2. Statement-I : Pb4+ can be reduced rasily to Pb2+ Statement-II : Pb2+ is ...
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1.Electric field intensity at a point depends upon a)Field Charge b) Test charge c) Permittivity of medium d) (Distance between point & test charge 2. Rydberg is used as unit of a) Wave no. b) Wave length c) Energy in atomic ...
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The 99th term of the series 2+7+14+23+34+....... is a)9999 b)9998 c)10000 d)none ...
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A lens of focal length 15 cm is dipped in water. What is the new focal length given that ref index of glass wrt air is 3/2 and that of water wrt air is 4/3. If the lens is dipped in a liquid under what condition, the rays are ...
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1. By emission of which of the following element remains unchanged a) β^- decay b) γ decay 2. Two lens of power –15D and +5D are placed is contact co-axially. The focal length of equlvalent lens is (A) –10 cm (B) –20 ...
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1. By emission of which of the following element remains unchanged a) β^- decay b) γ decay 2. Two lens of power –15D and +5D are placed is contact co-axially. The focal length of equlvalent lens is (A) –10 cm (B) –20 ...
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A letter is chosen at random from the word ' FAVOURABLE '. what is the probability that the chosen letter is a vowel ? ...
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1. Which of the following statement regarding the SN1 reaction shown by alkyl halide is not correct? a) (The added nucleophile plays no kinetic role in SN1 reaction.) b) (The SN1 reaction involves the inversion of configurati ...
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1.arrange in order of Increasing ionic size.. Na+, Mg2+, Al3+, F- 2.arrange in order of Increasing first ionization enthalpy B , C , N, O ...
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1.arrange in order of Increasing ionic size.. Na+, Mg2+, Al3+, F- 2.arrange in order of Increasing first ionization enthalpy B , C , N, O ...
