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Recent questions tagged class11

the mass charge ratio for a+ ion is 1.97*10_7kg/c .calculate the mass of A

asked May 16, 2019 by pranjalpal04

1 answer

2.5 g of a double sulphate or iron and ammonia on boiling with NaOH liberat

asked May 16, 2019 by 26ansel

1 answer

Calculate molecular mass of COOH.2H2O COOH

asked May 16, 2019 by ar136983

1 answer

What is the molar mass of diacidic organic Lewis base, if 12 gm chloroplati

asked May 16, 2019 by rahul123.ry6

1 answer

A gaseous mixture of propane and butane of volume 3L on complete combustion

asked May 16, 2019 by 143deek

1 answer

Let the perpendiculars from any point on the line 7x+56y=0 upon 3x+4y=0 and

asked May 16, 2019 by srinivasqp

1 answer

Which are isosters ?

asked May 16, 2019 by meena.clay6

1 answer

Calculate the wave number of lines having the frequency of $5 \times 10^{16}$ cycles per sec

asked May 16, 2019 by meena.clay6

1 answer

Calculate the ratio of K.E and P.E of an electron in an orbit?

asked May 16, 2019 by meena.clay6

1 answer

Calculate the accelerating potential that must be applied to a proton beam to give it an effective wavelength of 0.005 nm.

asked May 16, 2019 by meena.clay6

1 answer

calculate the Broglie wavelength of an electron moving with 1% of the speed of light ?

asked May 16, 2019 by meena.clay6

1 answer

What is common between $d_{xy}$ and $d_{x2-y2}$ orbitals ?

asked May 16, 2019 by meena.clay6

1 answer

Calculate energy of 2 moles of photons of radiation whose frequency is $5 \times 10^{34}\;Hz$

asked May 16, 2019 by meena.clay6

1 answer

If a DNA has 5 coils and adenine are 20% then find out the number of hydrog

asked May 16, 2019 by sangeetadhawale1355

1 answer

Mole fraction of methanol in aqueous solution is 0.05% so what wil

asked May 16, 2019 by m.saha191175

1 answer

How the 20% has came

asked May 15, 2019 by lara28625

1 answer

What are heart deaseas .. explain me briefly

asked May 15, 2019 by varunnegi780

1 answer

183.42g of sugar syrup contain 3.42g sugar calculate the mole fraction of s

asked May 15, 2019 by royaradhana630

1 answer

What are the conditions for detectable interference(of light)?

asked May 15, 2019 by ahmedthedoctor00

1 answer

What is relative mass and charge of an electron?

asked May 15, 2019 by meena.clay6

1 answer

Define the term scintillations?

asked May 15, 2019 by meena.clay6

1 answer

Why some atoms shows radioactivity?

asked May 15, 2019 by meena.clay6

1 answer

2L of an ideal gas at a pressure of 10 atm expands isothermally into a vacu

asked May 15, 2019 by sangitadhait24071981

1 answer

Which one of the following is not true ?

asked May 15, 2019 by meena.clay6

1 answer

Find the vector equation of the plane through the intersection of the plane

asked May 15, 2019 by skabilesh2004

1 answer

Equal moles of hydrogen and oxygen gases are placed in a container with a pin- hole through which both can escape. what fraction of the oxygen escapes in the time required for one half of the hydrogen to escape ?

asked May 15, 2019 by meena.clay6

1 answer

If A and B are two mutually exclusive events, then they are certainly not .

asked May 15, 2019 by rajeshwarb.sc

1 answer

What is limiting reagent?

asked May 15, 2019 by meena.clay6

1 answer

Calculate the amount of water in gm produced by the combustion of 8 gms of Ethane

asked May 15, 2019 by meena.clay6

1 answer

What is heterogeneous mixture? Give an example.

asked May 15, 2019 by meena.clay6

1 answer

Gram equivalent of an element is the number og g. Of it which will combine

asked May 15, 2019 by sahusouravkumar680

1 answer

. Apparent weight of a body immersed in water at 20°C is W1. When temperat

asked May 14, 2019 by shibusachi123

1 answer

If $500\;mL$ of a 5 M solution is diluted to 1500 mL, what will be the molarity of the solution obtained ?

asked May 14, 2019 by meena.clay6

1 answer

An oxide of metal contains $60\%$ of the metal. What will be the equivalent weight of the metal ?

asked May 14, 2019 by meena.clay6

1 answer

In a class of 60 boys there are 45 boys who play cards and 30 boys who play

asked May 13, 2019 by sangeetaarunbansal.16

1 answer

glucose and fructose can be differentiated by

asked May 13, 2019 by talentpratibhaaga1121

1 answer

order of enthalpy of vaporisation of hydra acids of n family

asked May 13, 2019 by talentpratibhaaga1121

1 answer

Find the work done required to break up a drop of water of the radius 5*10

asked May 12, 2019 by preetyg292

1 answer

How much energy would be required by an electron while moving from ground s

asked May 12, 2019 by keshav946059

1 answer

How much energy would be required by an electron while moving from ground s

asked May 12, 2019 by keshav946059

1 answer

What is exactly kinamatics and describe it in detail

asked May 11, 2019 by pradesai9090

1 answer

All the 30 students of a class took a test on maths and a test on English.

asked May 10, 2019 by atishpanda750

2 answers

A boday mass is moving in a circle of radius with angular velocity find exp

asked May 10, 2019 by singhgurdip13600

1 answer

during osmosis mention the flow of solvent through the semi permiable membr

asked May 10, 2019 by patricktesha14

1 answer

Two particles move in the same direction , passing a point A when velocity

asked May 9, 2019 by khanzadamustafakamalkhan1

0 answers

the sum of 10 item is 12 and sum of their square is 18 therefore standard d

asked May 9, 2019 by shashankvermabasu

1 answer

A monobasic acid with molar mass 63 containing nitrogen, hydrogen and oxyge

asked May 9, 2019 by ritua3008

1 answer

magnesium has 3 isotopes mg 24 25 and 26,if mg^24 is 10%, then what will be

asked May 9, 2019 by spm19691808

1 answer

two isotope of sodium na^23 and na^24 if in the nature,na^23 is 80% then wh

asked May 9, 2019 by spm19691808

1 answer

The pH of 0.1 molar solution of the acid HQ is 3 .the value of ionization c

asked May 9, 2019 by vivekcool7248

1 answer

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