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Q.43 The smallest positive (non–zero) integer “n” for which the expression(1+𝑖/(1−𝑖)^𝑛 = 1 holds true, is ___. The expression (1 + i(1−i)^n) = 1/(1 + (1−i)^n i) = 1 simplifies […]

Q.42 The average of all positive even integers less than or equal to 40 is ___. Step-by-Step Solution The average of all positive even integers less than or equal to […]

Q.41 A deck of ten cards is given to you as shown below in the figure. One card isdrawn at random from this deck. The probability of selecting a number […]

Q.40 The correct statement/s for bimolecular nucleophilic substitution reactions is/are(A) It goes through a carbocation formation(B) There is an inversion of configuration if the reacting center is chiral(C) Reaction is […]

Q.39 A single copy of an allele in sickle–cell heterozygous individuals reduces thefrequency and severity of malaria. The reason for this is(A) Low oxygen binding capacity of hemoglobin(B) Single amino […]

Q.38 Identify the correct pairs:(i) Thermophile                      (a) grows optimal at 37 °C(ii) Mesophile                […]

Q.37 Match the bacterial structure to function(i) Cell wall                             (a) Virulence factor(ii) Glycocalyx          […]

Q.36 The enriched media used to facilitate the growth of fastidious microorganismsare(A) Selenite F broth(B) Blood agar(C) Chocolate agar(D) Loeffler’s serum Blood agar, Chocolate agar, and Loeffler’s serum are enriched […]

Q.35 Which of the following acts as wound hormones in plants?(A) Ethylene(B) Cytokinins(C) Abscisic acid(D) Dextrin Ethylene acts as the primary wound hormone among the given options in plants. This gaseous […]

Q.34 Which of the following are producers in an ecological system?(A) Macrophytes(B) Phytoplanktons(C) Zooplanktons(D) Cyanobacteria Producers in an ecological system are autotrophs that synthesize their own food via photosynthesis or […]