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Q.8 The total number of mappings from the set {1,2} to the set {3, 4,5,6,7} is _____. The total number of mappings from the set {1,2} to {3,4,5,6,7} is 25. […]

Q.7 A 50-metre tall antenna transmits at 107 MHz (one of the FM radio broadcast frequencies). Calculate the maximum distance from the antenna at which the transmitted signal can be […]

Q.6 A man weighing 70 kg stands on a weighing scale which is placed in an elevator. The elevator is moving up towards its destination floor with a velocity of […]

Q.5 The number of phosphorous-hydrogen bonds in H 3 PO2 is ____ H3PO2, known as hypophosphorous acid, contains exactly 2 phosphorus-hydrogen (P-H) bonds. This structure explains its strong reducing properties […]

Q.4 The number of peaks in the 13 C-NMR spectrum of CDCl3 is ____ The 1313C‑NMR spectrum of CDCl33 shows three peaks, appearing as a triplet near 77 ppm.​​ Introduction In NMR spectroscopy, […]

Q.3 An enzyme preparation containing 10 mg/ml protein shows a specific activity of 50 U/mg. Theinitial velocity of reaction in a standard 1 ml reaction mixture containing 10 μl of […]

Q.2 The deactivation rate constant of an enzyme is 0.346 h –1 . Assuming that the deactivation processfollows first order kinetics, the half life of the enzyme in minutes is […]

Q.1 The pH of a 0.1 M solution of monosodium succinate (pKa1 = 4.19 and pKa2 = 5.57) is ____. The pH of a 0.1 M monosodium succinate solution is […]

Q.10 Let  be the set of all natural numbers. Consider the relation R on  given by yis divisible b 2( , ) :R m n m n  […]

Q.9 Let 𝐚 and 𝐛 be two non-zero vectors such that |𝐚 + 𝐛|| = |𝐚 – 𝐛||. Then (A) 𝐚 and 𝐛 are parallel to each other (B) 𝐚 […]