Recent questions tagged class11

A mixture of ozone and oxygen containing 20%by volume of ozone diffused in

asked Feb 24, 2019 by mukesh9809108304

1 answer

A particle is projected with the velocity of 14m/s at an angle of 60degree

asked Feb 23, 2019 by kinjalbhardwaj0209

1 answer

Calculate The RMS speed of oxygen molecules at 1092 K if the density of oxy

asked Feb 23, 2019 by ghanashayambora4598

1 answer

An ideal gas is allowed to expand both reversibly and Irreversible in isola

asked Feb 23, 2019 by yooyoohoney0007

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How to prepare ethyne from calcium carbide

asked Feb 23, 2019 by psandesh2001

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Electronic structure of ethyne

asked Feb 23, 2019 by psandesh2001

1 answer

One end of massless rope, which passes over a massless and frictionless pul

asked Feb 23, 2019 by sonalithapta21

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Equilibrium constant for reaction is 100.what will be the reverse reaction?

asked Feb 22, 2019 by shubhamkulshrestha.sk

1 answer

For a given mixture of NaHCO3 and Na2CO3 volume of a given HCl required is

asked Feb 21, 2019 by singhachyut9

1 answer

Propene ka HBR se reaction

asked Feb 21, 2019 by dilshadahmad16250

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A current of 10A paases through a coil having 5 turns and produces a magnet

asked Feb 21, 2019 by tiwariaditi101

1 answer

A current of 15ampere passes through a coil of 3 turns and produce a field

asked Feb 20, 2019 by pk934455

1 answer

A circle touches the line x=0 y=0 3x+4y=24 then the radius of the circle i

asked Feb 19, 2019 by muthurajbellarymuthu5158

1 answer

what is lassaigne extract. what is the reason to give Prussian blue colour

asked Feb 19, 2019 by dikkuukaushik3007

1 answer

How many moles of electron weight one kiligram ?

asked Feb 19, 2019 by meena.clay6

1 answer

if A is 3×3 A(adj A)= diagonal (4,4,4) then det (adj A)=

asked Feb 19, 2019 by nsravni180

1 answer

What is molarity of a solution contain $5.84\;gms$ of $NaCl$ in 200 ml of solution ?

asked Feb 19, 2019 by meena.clay6

1 answer

What is the percentage of carbon , hydrogen and oxygen in ethanol ?

asked Feb 19, 2019 by meena.clay6

1 answer

What do you mean by gram atomic mass. one million silver atoms weigh $1.79 \times 10^{16}\;g$ . Calculate the gram atomic mass of silver.

asked Feb 19, 2019 by meena.clay6

1 answer

How can we say that sugar is solid and water is liquid ?

asked Feb 19, 2019 by meena.clay6

1 answer

write the number of moles in 8g of helium

asked Feb 19, 2019 by meena.clay6

1 answer

$4g$ of impure $CaCO_3$ on treatment with excess HCl produces $0.88\; g\; CO_2$. What is the percent purity of $CaCO_3$ sample?

asked Feb 19, 2019 by meena.clay6

1 answer

Two stars each of mass M and radius R are approaching each other.For a head

asked Feb 19, 2019 by advupensingh

1 answer

A particle moves along xy plane whoseposition is r=ati+by^2j where a and b

asked Feb 19, 2019 by sukritysharan6129

0 answers

If a+b+c=xd,b+c+d=ya and a,b,c are non coplanar vectors ,then show that a+b

asked Feb 18, 2019 by sailurajesh2701

1 answer

Sir i don't understand it properly

asked Feb 18, 2019 by mdariz456

1 answer

A piece of wood of mass 0.03 kg is dropped from the top of a building 100m

asked Feb 18, 2019 by pathakphysics32

1 answer

When 12 coins are tossed 256 times, how many times may one expect 8 heads a

asked Feb 18, 2019 by smartsallu13

1 answer

Find the total number of nine digit numbers which have all different digits

asked Feb 18, 2019 by Shiromanikumar808

1 answer