Last seen: Mar 10, 2022
Correct answer: (b) P, R, U Explanation: Bromine is more selective ∴ it will form 3° halide if there is presence of 3° hydrogen. ∴ Q, S, T, ...
Correct answer: (c) Explanation: figure.png
Correct answer: (a) 0 Explanation: In H2C = C = CH2 hybridisation of C atoms is sp2 and sp. The molecule is monoplanar but H– atoms lie in differe...
Correct answer: (d) Explanation: The reaction is hydroboration which is addition of H2O to alkene (anti Makownikoff's rule).
Correct answer: (a) benzaldehyde Explanation: figure.png
7 × 8, 10 × 10, 13 × 12, 16 × 14 …… Tn = (3n + 4) (2n + 6) = 2(3n + 4) (n + 3) = 2(3n2 + 13n + 12) = 6n2 + 26n + 2 S10 = = + + = + 26 x ...
f(x) = x2 + ax + 1 f'(x) = 2x + a when ƒ(x) is increasing on [1, 2] 2x + a ≥ 0 ∀ x ∈ [1, 2] a ≥ – 2x ∀ x ∈ [1, 2] R = –4 when ƒ(x) is ...
= = = λ x = 2λ + 1, y = 3λ, z = 6λ - 1 for point of intersection of line & plane 2(2λ + 1) – (3λ + 2) + (6λ – 1) = 6 7λ = 7 ⇒ λ = 1 po...
Let z = x + iy arg = arg (x -2 + iy) - arg (x + 2 +iy) = tan-1 - tan-1 = = tan = 1 = 1 figure.png 4y = x2 - 4 + y2 x2 + y2 -...
I = ([2x]+ |x|) dx figure.png = [2x]dx + |x|dx = 0 + (-x)dx + x dx = + = = 8I = 5
Correct answer: (c) Sleeping sickness Explanation: Trypanosoma causes sleeping sickness.
Correct answer: (b) 1-A, 2-D, 3-B, 4-C
Correct answer: (c) Basidiomycetes Explanation: In basidiomycete asexual spores are not found and vegetative reproduction occurs by fragmentation....
Correct answer: (c) Dinoflagellates Explanation: Red tides in sea appear is due to red dinoflagellates. Gonyaulax undergoes rapid multiplication a...
Correct answer: (c) cheetah
Correct answer: (b) Thermoacidophiles Explanation: The bacteria that live in hot springs are called thermoacidophiles. Bacteria that live in sa...
Correct answer: (c) order
Correct answer: (b) Monera Explanation: According to five kingdom classification, Monera does not contain nuclear membrane.
Correct answer: (a) Puccinia Explanation: Quinine is obtained from Cinchona officinalis.
Correct answer: (d) Viroids Explanation: In 1971, Diener discovered a new infectious agents called Viroids that was smaller than viruses. These...