There are acid base theories that define an acid as any species that can
(a) donate a proton
(b) donate an electron
(c) accept a proton
(d) none of these
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The pair of species having identical shapes for molecules of both species is.
(b) : Central atom in each being sp hybridised shows linear shape. F — Xe — F O = C = O
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Species acting as both Bronsted acid and base is
(a) : According to BronstedLowry concept, a Bronsted acid is a substance which can donate a proton to any other substance and a Bronsted base is a substance which can...
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There are 15 dozen candles in a box. If there are 39 such boxes. How many candles are there in all the boxes together?
(a) Total number of candles = 15 × 12 × 39 = 7020
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There are 12 dozen mangoes in a box. If there are 43 such boxes, how many mangoes are there in all the boxes together?
(c) Number of mangoes = 12 dozens = 12 × 12 = 144 Number of mangoes in 43 boxes = 43 × 144 = 6192
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Amensalism is an association between two species where: a. one species is harmed and other is benefitted
c. one species is benefitted and other is unaffected
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Karl Marx explained the process of class struggle with the help of which one of the following theories?
(d) Darwin’s “struggle for existence” in natural history is analogous to the class struggle in “human History”. So option (c) stands incorrect. The sketch of dialectical materialism given by Karl...
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Assertion (A) : Formic acid is a stronger acid than acetic acid. Reason (R) : Formic acid is an organic acid.
(b) Formic acid is stronger than acetic acid due to its chemical composition. Formic acid is an organic acid as well as active acid in an organic acid.
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There are some balls of red, green and yellow colour lying on a table. There are as many red balls as there are yellow balls.
(b) According to question R = y and y = 2G ∴ R = 2G Hence, the number of red balls is double the number of green balls.
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Hitler’s hatred of Jews was based on ____________ theories of race. (A) Lebensraum (B) Pseudoscientific (C) Natural selection (D) Special treatment
The answer is (B) Pseudoscientific
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Notice the use of 'there' in the following sentences. There was a big crowd at the fair. There were many
1.There are beautiful roses in this park. 2.There is no fun in your story. 3.There are no secrets between us. 4.There are two primary schools in my village. 5.There are two ways to solve...
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