Last seen: Mar 10, 2022
Correct answer: (b) Rauwolfia Explanation: The genetic variation shown by the medicinal plant Rauwolfia vomitoria growing in different Himalayan r...
Correct answer: (c) Amazon rain forest Explanation: Amazon rain forest is known as the ‘lungs of the planet Earth’.
Correct answer: (c) Coral reefs Explanation: Coral reefs has maximum biodiversity among above options.
Correct answer: (c) Steller’s sea cow is an extinct animal.
The decomposition of azoisopropane to hexane and nitrogen at 543 K is represented by the following equation. (CH3)2CHN = NCH(CH3)2(g) → N2(g) + C6H1...
Given First order reaction, t = log k = log = log = 8.918 x 10-3 min-1 Therefore, t1/2 of the decomposition reaction is t1/2 = ...
For a first order reaction, the time required for 99% completion is t1 = log = log 100 = 2 x For a first order reaction, the time required f...
k = = year-1 Here, It is know that, t = log ⇒ 10 = log ⇒ 10 = (-log [R]) ⇒ log [R] = - ⇒ [R] = antilog (-0.1071) = antilog = 0.7...
Correct answer: (b) Explanation: Only 1-Alkynes form alkynides.
Correct answer: (d) Only nature of halogen atom determines rate of the reaction. Explanation: Nature of halogen atom and the alkyl group both dete...
Correct answer: (1) Explanation:
Correct answer: (2) Statement-I is true but Statement-II is false Explanation: The process of producing syn-gas from coal is called gasification o...
Correct answer: (3) o-Hydroxy methyl phenol Explanation: Monomer of Novolac is figure.png O-hydroxy methyl phenol
Correct answer: (2) Explanation: figure.png
Correct answer: (4) Both (A) and (R) are correct but (R) is not the correct explanation of (A) Explanation: (A) Aluminium is reactive metal so Alu...
Correct answer: (2) Yb Explanation: Ytterbium shows +2 oxidation state with diamagnetic nature.
Correct answer: (3) Explanation: figure.png
Correct answer: (b) Over exploitation by humans Explanation: Humans have always depended on nature for food and shelter but when ‘need’ turns to ‘...
Correct answer: (d) All the species are neither threatened nor indigenous species of India. Explanation: Lantana, Eichhomia and African catfish, a...
Correct answer: (d) All of the above Explanation: Endangered (ER): It is facing a high risk of extinction in the wild in the near future if conser...