Last seen: Mar 10, 2022
Correct answer: (c) Trigonal bipyramidal Explanation: Shape of transition state is as follows: figure.png
Correct answer: (c) Explanation: Aryl halides do not undergo nucleophilic substitution under ordinary conditions. The low reactivity of halogen at...
Correct answer: (a) 10 Explanation: Milli equivalents of H2SO4 = 60 x = 12 Milli equivalents of NaOH = 20 x = 2 Milli equivalent of NH3 = ...
Correct answer: (c) III > I > II > IV Explanation: Higher stability of allyl and aryl substituted methyl carbocation is due to dispersal ...
Correct answer: (b) Explanation: (a), (c) and (d) are resonating structures. figure.png
figure.png tan(30 + θ) = tan(30 + θ) = = = √3 √3 tanθ + 1 = 3 - √3 tanθ 2√3 tanθ = 2 tanθ = θ = 30°
figure.png Pot. Diff. across each resistor = 2V q = CV = 50 × 10–6 × 2 = 100 × 10–6 = 100 µC
E = 50 sin Energy density = Energy for volume V = = 5.5 × 10-12 8.8 x 10-12 x 2500V = 5.5 × 10-12 V = = .005 m3 = .005 x 106 cm3 = 5...
figure.png Pi = Pf m x 40 = x v + x 60 40 = + 30 ⇒ v = 20 (K.E)I = m x (40)2 = 800 m (K.E)f = .(20)2 + .(60)2 = 1000 m |ΔK.E.| = |1...
figure.png ⇒ effective circuit diagram will be figure.png figure.png Point drop across 6Ω = 1 × 6 = 6 = VAB Hence point drop across 15Ω ...
The degree at which the system can sustain itself without external support is called self sustainability.
(a) Bare rocks (xerosere) (b) Sandy areas (psammosere)
Nutrient cycles in nature called biogeochemical cycles because the cycling of nutrients occurs between living organisms (bio) and non-living things-ge...
It is because the biomass available to the consumer for consumption is a resultant of the primary productivity from plants.
Oceans are least productive because they do not receive sufficient sunlight which is necessary for 1° productivity.
Heterotroph (as it does not have chlorophyll).
Sunlight (solar radiation)
Crustose lichens.
The rate of succession is much faster in secondary succession as the substratum (soil) is already present as compared to primary succession where the ...
The regrowth of forest is called secondary succession.