Recent questions tagged class11

When two bodies move toward each other with constant speeds the distance be

asked Jan 7, 2019 by najwajunejo

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. A motorist traveling at 10m/sec can bring his car to rest in a braking di

asked Jan 7, 2019 by najwajunejo

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Racing car acceleration uniformly through three gear changes with the follo

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A man is in a car moving with velocity of 36Km/h, his speed with respect to

asked Jan 7, 2019 by najwajunejo

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1. A plane travels from point A for 1 hour the west at 400km/h and the then

asked Jan 7, 2019 by najwajunejo

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The value of Planck's constant is $6.63 \times 10^{-34} Js$. The speed of light is $3 \times 10^{17} nms^{-1}$. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of $6 \times 10^{15} s^{-1}$ ?

asked Aug 20, 2018 by pady_1

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How many words can be formed using the letter of the word ''TRIANGLE'' if the vowels are at even place?

asked Jul 25, 2018 by ajkmr98

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Find energy of each of the photons which correspond to light of frequency $3\times 10^{15}Hz$.

asked Jul 19, 2018 by swapnarajan1982

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Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of ${_6}C^{12}$

asked Jul 17, 2018 by swapnarajan1982

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$2\sin ^2\large\frac{3\pi}{4}$$+2\cos^2\large\frac{\pi}{4}$$+2\sec^2\large\frac{\pi}{3}$ =

asked Jul 3, 2018 by pady_1

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Write about india's space program

asked May 19, 2017 by pady_1

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n-Butane and iso-butane are .......... isomers

asked May 9, 2017 by meena.p

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Which of the following statements is false ?

asked May 9, 2017 by meena.p

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Which of the following isomerisms is shown by alkenes but not by alkanes ?

asked May 9, 2017 by meena.p

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A racemic mixture contains equal ........ of dextrorotatory and laevorotatory isomers.

asked May 9, 2017 by meena.p

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A compound whose molecules are superimposable on their mirror images even though they contain asymmetric carbon atoms is called

asked May 9, 2017 by meena.p

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Which of the following can exist as diastereomers ?

asked May 9, 2017 by meena.p

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Which of the following compounds can exhibit geometrical isomerism ?

asked May 9, 2017 by meena.p

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The simplest alkane capable of exhibiting chain isomerism has ..... carbon atoms.

asked May 9, 2017 by meena.p

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The functional isomers of ethers are

asked May 9, 2017 by meena.p

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Total number of conformations of ethane are

asked May 9, 2017 by meena.p

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Vapours of n-hexane when passed over special catalysts under high pressure and temperature given benzene. This process is called

asked May 9, 2017 by meena.p

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Propane when treated with conc. Nitric acid at 723 K gives

asked May 9, 2017 by meena.p

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With the increase in branching, the boiling point

asked May 9, 2017 by meena.p

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The addition reaction of carbon-carbon double bonds are

asked May 9, 2017 by meena.p

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The reactivity of a hydrogen in an alkane depends on

asked May 9, 2017 by meena.p

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Alkane molecules are not attacked by electrophiles or neutrophiles because they are

asked May 9, 2017 by meena.p

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Wide range of different hydrocarbons are separated into fractions

asked May 9, 2017 by meena.p

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Aromatic compounds are known as

asked May 9, 2017 by meena.p

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Due to presence of double bonds, alkenes are

asked May 9, 2017 by meena.p

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Carbon monoxide is a gas which is

asked May 9, 2017 by meena.p

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which of the following compounds can be used as antifreeze in automobile radiators ?

asked May 5, 2017 by meena.p

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An ether is more volatile than an alcohol having the same molecular formula. This is due to

asked May 5, 2017 by meena.p

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The reaction of phenol with choloroform in the presence of dilute sodium hydroxide finally introduces, which of the following functional group ?

asked May 5, 2017 by meena.p

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Consider the following reaction : the produce Z is

asked May 5, 2017 by meena.p

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Among the following four compounds (A)Phenol (B)Methylphenol (C)meta−nitrophenol (D)Para−nitrophenol the acidity order is

asked May 5, 2017 by meena.p

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The functional isomers of ethane nitrile is

asked Apr 19, 2017 by meena.p

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Number of dibromo derivatives possible for propane are

asked Apr 19, 2017 by meena.p

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Which of the following conformations of n-butane is the least stable ?

asked Apr 19, 2017 by meena.p

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Total number of conformations of ethane are

asked Apr 19, 2017 by meena.p

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Which of the following compounds is isomeric with trimethyl amine ?

asked Apr 19, 2017 by meena.p

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Which of the following pairs of compounds are tautomers ?

asked Apr 19, 2017 by meena.p

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How many optically active stereoisomers are possible for butane-$2,3-diol?$

asked Apr 19, 2017 by meena.p

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An isomer of ethanol is:

asked Apr 19, 2017 by meena.p

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The isomers which can be inter converted through rotation around a single bond are:

asked Apr 19, 2017 by meena.p

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Which of the following compounds will exhibit cis-trans isomerism?

asked Apr 19, 2017 by meena.p

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Find no. of Valence é. from IE

asked Mar 21, 2016 by zameel2255

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Moles of sodium thiosulphate reacted and unreacted after the reaction are respecticvely

asked Jan 18, 2016 by meena.p

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A cable that weighs 1.5 kg/meter and is attached to a bucket that weighs 75 kg. Initially, there are 500 kg of grain in the bucket and as the bucket is raised 2 kg of grain leaks out of a hole in the bucket for every meter the bucket is raised. The bucket is 200 meters below a bridge. How much work is required to raise the bucket to the top of the bridge?

asked Dec 13, 2015 by afiani.09

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what is inductomeric effect ?

asked Jan 7, 2015 by shiva31smart

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