Last seen: Mar 10, 2022
From a study of the history of life on earth through fossil records, we learn that large-scale loss of species like the one we are currently witnessin...
David Tilman’s long-term ecosystem experiments using outdoor plots provide some tentative answers. Tilman found that plots with more species showed le...
The loss of biodiversity can be prevented by: Practise of recycling waste paper etc. Judicious exploitation of medicinal and commercial plants ...
Some possible explanations are that the alien species may be: Vigorously growing and compete with the natural plants for minerals, water etc. The...
When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. When a host fish species bec...
As one moves from the equator to the polar regions, the length of the day decreases and the length of the night increases. The length of day and night...
k= 2.418 × 10-5 s-1 T = 546 K Ea = 179.9 kJ mol-1 = 179.9 × 103 J mol-1 According to the Arrhenius equation, k = Ae-Ea/RT ⇒ In k = In A - ...
From the given data, we obtain figure.png figure.png Slope of the line = -12.301 K According to Arrhenius equation, Slope = - ⇒ Ea = ...
The thermal decomposition of SO2Cl2 at a constant volume is represented by the following equation. SO2Cl2(g) → SO2(g) + Cl2(g) At t = 0...
Correct answer: (b) Explanation: figure.png
Correct answer: (a) Explanation: figure.png
Correct answer: (d) Explanation: figure.png
Correct answer: (b) Explanation: is less reactive and more selective and so the most stable free radical (3°) will be the major product.
Correct answer: (a) a Explanation: Bromine is more selective ∴ abstract that hydrogen which forms stable free- radical. ∴ figure.png (3° f...
Correct answer: (C) Explanation:
Correct answer: (c) Explanation:
Correct answer: (1) Explanation: figure.png
Correct answer: (3) A < 5, B > 17 Explanation: BOD values of clean water (A) is less than 5 ppm So A < 5 BOD values of polluted wat...
Correct answer: (4) KHSO4 Explanation: ∵ Van't Hoff factor is highest for KHSO4. ∴ colligative property (ΔTf) will be highest for KHSO4.
Correct answer: (4) Both (A) and (R) are correct and (R) is the correct explanation of (A) Explanation: Both assertion and reason are correct &...