In the preparation of H2SO4 by contact process, why is SO3 not absorbed
directly in water to form H2SO4 ?
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The percentage of solar radiation absorbed by all the green plants for the process of photosynthesis is about
(a) 1 % solar radiation absorbed by all the green plants
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In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in internal energy for the process?
According to the first law of thermodynamics, ∆U = q + W (i) Where, ∆U = change in internal energy for a process q = heat W = work Given, q = + 701 J (Since...
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In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in the internal energy of the process?
Internal energy of the system increases by 307 J.
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Why is the Prime Minister in India not directly elected by the people? Choose the most appropriate answer
(a) In a Parliamentary democracy only the leader of the majority party in the Lok Sabha can become the Prime Minister.
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Select the correct word from the following list and fill in the blanks. float, water, crop, nutrients, preparation
(a) The same kind of plants grown and cultivated on a large scale at a place is called crop. (b) The first step before growing crops is preparation of the soil. (c)...
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Write the conditions to maximize the yield of H2SO4 by Contact process.
Manufacture of sulphuric acid by Contact process involves three steps. 1. Burning of ores to form SO2 2. Conversion of SO2 to SO3 by the reaction of the former with O2 (V2O5 is...
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Dehydration of alcohols to form an alkene is always carried out with conc. H2SO4 and not with conc. HCl or HNO3. Explain.
In acidic medium alcohols protonated then loses H2O to form a carbo cation. If HCl Cl- strong nucleophile cause nucleophilic substitution, HNO3 causes oxidation.
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Why is the Prime Minister in India not directly elected by the people? Choose the most appropriate answer and give reasons for your choice
(a) In a Parliamentary democracy only the leader of the majority party in the Lok Sabha can become the Prime Minister.
1 Answers 1 views
(i) What causes tendril to encircle or coil around the object in contact with it? Explain the process involved.
(i) Auxin diffuses to the other part which is away from the support. Part of the tendril in contact from the support does not grow rapidly. H 2 Part of...
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Assertion : Dinitrogen is inert at room temperature. Reason : Dinitrogen directly combines with lithium to form ionic nitrides.
(c) At higher temperatures, dinitrogen combines with metals to form ionic nitrides.
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