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Shilpi98
@shilpi98
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Joined: Dec 29, 2021
Last seen: Mar 10, 2022
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Topics: 2165 / Replies: 0
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Topic
A farmer harvests his crop and expresses his harvest in three different ways. (a) I have harvested 10 quintals of wheat. (b) I have harvested 10 quintals of wheat today in one acre of land.
4 years ago
Forum
Ecosystem
Replies: 0
Views: 151
Topic
The rate of decomposition of detritus is affected by abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.
4 years ago
Forum
Ecosystem
Replies: 0
Views: 76
Topic
How do you distinguish between humification and mineralisation?
4 years ago
Forum
Ecosystem
Replies: 0
Views: 72
Topic
What are the shortcomings of ecological pyramids in the study of ecosystem?
4 years ago
Forum
Ecosystem
Replies: 0
Views: 73
Topic
The rate constant for a first order reaction is 60 s^-1. How much time will it take to reduce the initial concentration of the reactant to its 1/16th value?
4 years ago
Forum
Chemical Kinetics
Replies: 0
Views: 193
Topic
The half-life for radioactive decay of 14^C is 5730 years. An archaeological artifact containing wood had only 80% of the 14^C found in a living tree. Estimate the age of the sample.
4 years ago
Forum
Chemical Kinetics
Replies: 0
Views: 85
Topic
Calculate the half-life of a first order reaction from their rate constants given below:
4 years ago
Forum
Chemical Kinetics
Replies: 0
Views: 106
Topic
The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:
4 years ago
Forum
Chemical Kinetics
Replies: 0
Views: 170
Topic
The following results have been obtained during the kinetic studies of the reaction: 2A + B → C + D
4 years ago
Forum
Chemical Kinetics
Replies: 0
Views: 209
Topic
An alkene having molecular formula C7H14 was subjected to ozonolysis in the presence of zinc dust. An equimolar amount of the following two compounds was obtained
4 years ago
Forum
Hydrocarbons
Replies: 0
Views: 111
Topic
Double bond equivalent (degree of unsaturation) of (A) is
4 years ago
Forum
Hydrocarbons
Replies: 0
Views: 77
Topic
Which one of the following reactions is expected to readily give a hydrocarbon product in good yields?
4 years ago
Forum
Hydrocarbons
Replies: 0
Views: 153
Topic
Which of the following compounds are antiaromatic
4 years ago
Forum
Hydrocarbons
Replies: 0
Views: 73
Topic
Which of the following would not give 2-phenyl butane as the major product in a Friedel Crafts alkylation reaction on benzene ring?
4 years ago
Forum
Hydrocarbons
Replies: 0
Views: 203
Topic
Which one of the following compounds contains β-C1 -C4 glycosidic linkage?
4 years ago
Forum
Chemistry
Replies: 0
Views: 302
Topic
In the structure of the dichromate ion, there is a
4 years ago
Forum
Chemistry
Replies: 0
Views: 220
Topic
The major component/ingredient of Portland Cement is
4 years ago
Forum
Chemistry
Replies: 0
Views: 79
Topic
Select the graph that correctly describes the adsorption isotherms at two temperatures T1 and T2 (T1 > T2) for a gas ]:
4 years ago
Forum
Chemistry
Replies: 0
Views: 184
Topic
The correct order of reactivity of the given chlorides with acetate in acetic acid is
4 years ago
Forum
Chemistry
Replies: 0
Views: 332
Topic
What is an incomplete ecosystem? Explain with the help of suitable example.
4 years ago
Forum
Ecosystem
Replies: 0
Views: 139
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