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about mahatma gandhi

Posted by Aman Khan 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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what is equlibrium

Posted by Aman Khan 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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If the diameter of a carbon atom is 0.15 nm, calculate the no. of carbon atoms which can be placed side by side in a straight line across length of scale of length 20 cm long.

Posted by Nishant Mohanty 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why the electronic configuration of Ce element is different from Pr element?????

Posted by Tanuja Kumari 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Carbon undergoes sp2 r sp3 hybridisation

Posted by Mani Mass 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Akshat Mishra 8 years, 1 month ago

Both hybridisation as it forms so many compounds

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explain the born-hebar cycle to determine the lattice enthalpy of NaCl

Posted by Mohit Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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2SO2 +O2 - 2SO3

Posted by Maruti Vaishnav 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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what is quark?

Posted by Anshuman Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Explain why pure liquids and solids can be ignored while writing the equilibrium constant expression

Posted by Ujjwal Bhanwra 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Ruchika Luthra 8 years, 1 month ago

because the concentration of pure solids and liquids do not change the reactant amount, so they r ignored while writing equillibrium constant expression.

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C-C-C | C-C-C-C-C | C-C-C | C Write IUPAC name of given chain

Posted by Prabal Chauhan 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Tushar Kharb 8 years, 1 month ago

1.propane 2.pentane 3.propane 4.methane

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How many sub shells are associated with n =3

Posted by Ravina Dhankhar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why is the electron gain enthalpy of bromine is less negative than that of chlorine.

Posted by Ajit Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Which of the following will have the most negative electron gain enthalpy and which the least negative? P,S,CL,F. Explain your answer.

Posted by Balram Yadav 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is system

Posted by Mukesh Raikwar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Jasmer Panjetha 8 years, 1 month ago

A system in thermodynamics refers to that part of the universe in which observations are made.

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Shradha Tamang 8 years, 1 month ago

The part of universe in which the experiment is carried out is called system and the remaining part is called surrounding.

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In balmer series of hydrogen atom spectrum which electron transition cause third line.?

Posted by Vipul Rajput 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why we study hydrogen

Posted by Jatin Mehta 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why carbon atom don't share it's all Valence electrons with another carbon atom?

Posted by Hansraj Raj 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Types of preparation of sodium chloride

Posted by Sanyam Singh 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is strometry

Posted by Arjun Kumar Yadav Yadav 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Chemical properties of calcium carbonate

Posted by Nitin Sharma 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is equilibrium state?

Posted by Ashwini Sable 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is endothermic in equilibrium and it is in forward direction?

Posted by Ashwini Sable 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is stachiometric

Posted by Ashwini Sable 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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N2+ 3H2 - 2NH3 find del H

Posted by J V L Rao 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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By burning a candle,why it's flame goes upward even when the burning candle is turned upside down?

Posted by Rihan Roy 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Kritika Trehan 8 years, 1 month ago

It's precisely <i>because</i> of gravity that they go upwards. The gravity is pulling on both it and the air. The air, being cooler and thus denser, puts pressure on the lighter flame when it is displaced. That pressure is stronger on the bottom than the top, and pushes the flame upwards. That's buoyancy; it's the same thing that makes boats float.

When the gravity is absent, the cooler, denser air doesn't flow downwards. It continues to put pressure on the flame from all directions, which means it comes out as a sphere rather than going upwards.

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What is auto protolysis of water

Posted by Ankit Saini 8 years, 1 month ago

CBSE > Class 11 > Chemistry

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Kritika Trehan 8 years, 1 month ago

In autoprotolysis a proton is transferred between two identical molecules, one of which acts as a Brønsted acid, releasing a proton which is accepted by the other molecule acting as a Brønsted base. For example, water undergoes autoprotolysisin the self-ionization of water reaction.

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What is the full procedure of balancing the equation by half reaction method? Please show it step by step......

Posted by Shahi Idrisi 8 years, 1 month ago

CBSE > Class 11 > Chemistry