MCQ
Science and Pedagogy MCQ - Practice Questions with Answers
Solve 148 Science and Pedagogy questions for RAS/RPSC preparation.
Practice questions
Q1Number of neutrons in ⁵⁶₂₆Fe will be
In nuclide notation, the mass number equals protons plus neutrons, and the atomic number equals protons. For ⁵⁶₂₆Fe, neutrons = 56 - 26 = 30. Therefore, option C is correct.
Q2Which of the following element is chalcogen?
Chalcogens are Group 16 elements of the periodic table. Tellurium has the symbol Te and belongs to Group 16, while At, Pb and Tl do not belong to this group. Therefore, option C is correct.
Q3Antifertility drug is :
Antifertility drugs are used as oral contraceptives, and ethynylestradiol, also called novestrol, is listed as a synthetic estrogen example in this group. Aspartame is an artificial sweetener, soframicine is an antimicrobial preparation, and prontosil is a sulfa drug, so C is the correct answer.
Q4Select the option from the following sets (i to iv) which is not permissible for an electron in an atom - (i) n=2, l=1, m=0, s = + ½ (ii) n=3, l=3, m=-3, s= + ½ (iii) n=3, l=2, m=-2, s= 1 (iv) n=4, l=3, m=-2, s= + ½
For an electron in an atom, l can have values from 0 to n−1, m can range from −l to +l, and the spin quantum number can only be +1/2 or −1/2. Set (ii) is impossible because n = 3 cannot have l = 3, and set (iii) is impossible because spin cannot be 1. Hence D is correct.
Q5For Z = PV/nRT, Z is known as :
For real gases, Z = PV/nRT is called the compressibility factor. It measures deviation from ideal gas behaviour, for which Z equals 1 under ideal conditions. Therefore C is correct.
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6Frequency of crossing over depends on - .
7The correct sequence of objectives of affective domain according to Bloom’s Taxonomy is
8A box of 10 kg is placed on a rough surface. If the coefficient of static friction is μs = 0.4, then the force of static friction when applied force is 30 N will be – (take g = 10.m/s²)
9The first human hormone produced by recombinant DNA technology is
10ΔH of adsorption is always :
11Two coherent light beams of intensity I and 4 I produce interference pattern. The intensity at a point where the phase difference is zero, will be
12Small circular DNA molecules that are capable of self-replication are called
13Interaction between two species in which one species is benefited and the other is neither harmed nor benefited is called -
14Which of the following characteristics is not related to team teaching ?
15Which of the following process is involved in fixation of CO₂ from atmosphere ?