Toppers' Discussion Forum

Discussion Board Class Subject  

Thu February 23, 2017

ques 6 (b) 3 of icse 2016 math

we  have to apply formula Ar triangle 1/ar triangle 2 = side 1/side whole square isnt't it ?

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ICSE X Mathematics

Thu February 23, 2017

Boards

What are the expected questions in mathematics CBSE board 2017....It's urgent

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CBSE XII Commerce Mathematics

Thu February 23, 2017

Macroeconimcs

Want to have notes for govt budget in macroeconomics

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CBSE XII Commerce Reference Notes

Thu February 23, 2017

Atomspheric pollution

How is sulphur dioxide is added into the atomsphere by the human activities     

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ICSE IX Reference Notes

Thu February 23, 2017

Atomspheric pollution

How is sulphur dioxide is added into the atomsphere by the human activities     

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ICSE IX Reference Notes

Thu February 23, 2017

propagation of sound

what is an echo

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CBSE VII Reference Notes

Thu February 23, 2017

Class X ICSE Q2 (e)

The answer given does not seem to be correct. How can tell about the ratio of frequencies from the ratio of amplitude of two waves ?

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ICSE X Reference Notes

Thu February 23, 2017

Periodic table

Mg, Na, S, Cl, Si(increasing order of atomic size)

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ICSE X Reference Notes

Thu February 23, 2017

One doubt

why in the rs aggarwal book of excercise 10D there you have used 2x.

CBSE X Reference Notes

Thu February 23, 2017

quadrilateral

what is contradication method?  

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CBSE IX Chapter Notes

Thu February 23, 2017

Mole concept

A sample of coal gas contained 45 % H2 ,30%CH4, 20% CO ,and 5% C2H2 by volume. 100 cm3 of this gaseous mixture was mixed with 190cm3 of oxygen and exploded. Calculate the volume and Composition of the mixture, when cooked to room temperature  and pressure.

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ICSE X Chapter Notes

Thu February 23, 2017

Mole concept

A sample of coal gas contained 45 % H2 ,30%CH4, 20% CO ,and 5% C2H2 by volume. 100 cm3 of this gaseous mixture was mixed with 190cm3 of oxygen and exploded. Calculate the volume and Composition of the mixture, when cooked to room temperature  and pressure.

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ICSE X Chapter Notes

Wed February 22, 2017

Function of Grid

If The Negative potential at Grid Is Not Altered How Will Then The Screen Show The Flourosence

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ICSE X Chapter Notes

Wed February 22, 2017

Emergency

Vakta be haara ke veero ke sanbandh me Kya KAHA hai?

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ICSE IX Chapter Notes

Wed February 22, 2017

matrices

do we have to put sign for cofactor as -ve for A12? ie-1^(1+2)

CBSE XII Science Chapter Notes

Wed February 22, 2017

I'm not able to turn the page

im not able to turn the page !

ICSE X Chapter Notes

Wed February 22, 2017

Quadratic equation

Find the positive fraction less than 1 whose sum of the numerator and the denominator is 10,and the difference of the fraction and its reciprocal is 40/21

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ICSE X Chapter Notes

Wed February 22, 2017

questions of chemistry and physics and biology

Q1. carbon dioxide producded by action of dilute HCl acid on potassium hydrogen carbonate is moist whereas that produced by heating potassium hydrogen carbonates is dry. What could be the differences in the composition of carbon dioxide in two cases? state the law associated with it.       Q2. A balloon filled with hydrogen gas rises upto the air due to the_________ weight of the balloon low density of air high density of air buoyant force exerted by air   Q3.  Rohit saw mushrooms growing on decaying leaves. his mother stopped him from him from uprooting it. why?

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CBSE IX Exams

Wed February 22, 2017

not getting previous yr papers

Sir/ma'am I am not able to get previous yrs paper even after entering the code which is 637370 for no. 9811630773

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CBSE XII Science Exams

Wed February 22, 2017

Capacitance

Dielectric constant in terms of medium

CBSE XII Science Exams
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