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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 […]

Q.8 The “strong nuclear force” holds the protons and neutrons (nucleons) together in the nucleus of anatom. It is found that the binding energy per nucleon (for the nucleus of […]

Q.7 Among the following pairs of co-ordination compounds, the pair(s) which represent(s) a case of“ionization isomerism” is (are):(A) [Pt(en) 2 Cl 2 ]Br 2 and [Pt(en)2 Br 2 ]Cl 2(B) […]

Q.6 Among the following compounds, which of these will show two singlets in their 1 H-NMRspectrum?(A) 1,4-Dichlorobenzene (B) 1,2-Dichlorobenzene(C) Dimethoxymethane (D) Methylacetate 1,4-Dichlorobenzene shows two singlets in its 1H NMR […]

Q.5 The superoxide ion, O2– , is produced by the reaction K+O 2→KO2 . The correct statement(s)pertaining to oxygen and superoxide ion is (are):(A) oxygen is paramagnetic and has two […]

Q.4 Which of the following statements about antigen-antibody (Ag-Ab) complexes is (are) TRUE?(A) Hydrogen bonds and van der Waals forces participate in Ag-Ab interactions(B) Ionic bonds and hydrophobic bonds participate […]

Q.3 N and N0 represent the number of viable cells at time ‘t’ during sterilization and at the start ofsterilization (t=0), respectively. Assuming that cell death follows first order kinetics […]

Q.2 What is (are) the difference(s) between microtubules and microfilaments?(A) Microtubules are made up of tubulin and microfilaments are made up of intermediate filaments(B) Microtubules are important for compression resistance […]