Q.16 A minute vessel of peritubular capillaries network runs parallel to the Henle’s loop forming a ‘_______’ shaped vasa recta.Ans A. ZB. DC. VD. UCorrect Ans Provided: D
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Q.18 Which of the following sub-atomic particle was discovered by J. Chadwick in 1932?Ans A. ElectronsB. NeutronsC. NeutrinosD. ProtonsCorrect Ans Provided: B
Q.19 Where does the fertilization in human females take place?Ans A. CervixB. UterusC. Fallopian tubeD. BlastocoelCorrect Ans Provided: C
Q.10 Which of the following contraceptive methods interfere with ovulation and prevent release of ova from the ovaries?Ans A. Copper TB. TubectomyC. DiaphragmsD. Oral Contraceptive PillsCorrect Ans Provided: D
Q.15 _______ are generally sodium salts of sulphonic acids or ammonium salts with chlorides or bromides ions.Ans A. MicellesB. SoapsC. DetergentsD. PVCCorrect Ans Provided: C
Q.5 Which of the following is correct?1. Carbon is tetravalent because it has four valence electrons.2. Covalently bonded molecules are seen to have weak bonds within the molecule, but intermolecular forces are strong.
Q.8 Who put forward the following postulate about the model of an atom?“While revolving in discrete orbits the electrons do not radiate energy.”Ans A. Werner HeisenbergB. Ernest RutherfordC. Neils BohrD. John DaltonCorrect Ans Provided: C
Q.7 Which of the following is incorrect regarding rules for writing the number of electrons in different energy levels or shells?Ans A. The maximum number of electrons present in a shell is given by the formula 2n2, where ...
Q.14 The mass of aluminium is :Ans A. 27 u ( 12 protons + 15 neutrons)B. 27 u (14 protons + 13 neutrons)C. 27 u (11 protons + 16 neutrons)D. 27 u (13 protons + 14 neutrons)Correct Ans ...
Q.11 A solution contains 50 g of common salt in 300 g of water. Calculate the concentration in terms of mass-by-mass percentage of the solution.Ans A. 11.1 PercentB. 16 PercentC. 14.28 PercentD. 7 PercentCorrect Ans Provided: C
