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How many structural isomers possible of the molecular formula C3H6O (excluding enol form)?
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The o, p-directing but deactivating group is ______.
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When a certain metal was irradiated with light of frequency 3.2 × 1016 Hz, the photoelectrons emitted had twice the kinetic energy as did photoelectrons emitted when the same metal was irradiated with light of frequency 2.0 × 1016 Hz. The light of frequency v0 for the metal is ______ × 1015 Hz.
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Assertion A: Magnesium can reduce Al2O3 at a temperature below 1350°C, while above 1350°C aluminium can reduce MgO.
Reason R: The melting and boiling points of magnesium are lower than those of aluminium.
In light of the above statements. choose most appropriate answer from the options given below:
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An Ellingham diagram provides information about ______.
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The wavelength associated with an electron equal to the wavelength of a proton would be ______ × 103.
(mass of e = 9 × 10−28 g; mass of proton = 1.6725 × 10−24 g)
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0.27 g of a long-chain fatty acid was dissolved in 100 cm3 of hexane. 10 mL of this solution was added dropwise to the surface of the water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance from the edge to centre of the watch glass is 10 cm. What is the height of the monolayer?
[Density of fatty acid = 0.9 g cm−3; π = 3]
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What is the work function of the metal if the light of wavelength 4000 Å generates photoelectrons of velocity 6 × 105 ms−1 from it?
(Mass of electron = 9 × 10−31 kg
Velocity of light = 3 × 108 ms−1
Planck's constant = 6.626 × 10−34 Js
Charge of electron = 1.6 × 10−19 JeV−1)
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The region in the electromagnetic spectrum where the Balmer series lines appear is ______.
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Which one of the following compounds has the smallest bond angle in its molecule?
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The number of acyclic structural isomers (including geometrical isomers) for pentene are ______.
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Compound with molecular formula C3H6O can show ______.
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Which of the following pairs of compounds are positional isomers?
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Biuret test is not given by ______.
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The major product obtained in the photo catalysed bromination of 2-methylbutane is ______.
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Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is ______.
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Which of the following reactions will not produce a racemic product?
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The activation energy of one of the reactions in a biochemical process is 532611 J mol–1. When the temperature falls from 310 K to 300 K, the change in rate constant observed is k300 = x × 10–3 k310. The value of x is ______.
[Given: ln 10 = 2.3, R = 8.3 J K–1 mol–1]
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The equation k = `(6.5 xx 10^12 "s"^(-1))"e"^(- 26000 " K"//"T")` is followed for the decomposition of compound A. The activation energy for the reaction is ______ kJ mol-1. (Nearest integer) (Given: R = 8.314 JK-1 mol-1)
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\[\ce{C6H12O6 ->[(Zymase)] A ->[NaOH][\Delta] B + CHI3}\]
The number of carbon atoms present in the product B is:
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