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CBSE Class 11 Science Chemistry Free Doubts and Solutions

CBSE - XI Science - Chemistry

What is the molality of 2M HN3 solution? (density of solution is 1.5 g/ml) 

Asked by arushidabhade 23rd May 2019, 6:49 PM
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CBSE - XI Science - Chemistry

Pls solve.

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Asked by pb_ckt 18th May 2019, 11:04 PM
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CBSE - XI Science - Chemistry

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Asked by pb_ckt 10th May 2019, 1:29 PM
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CBSE - XI Science - Chemistry

Pls solve.

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Asked by pb_ckt 10th May 2019, 1:28 PM
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CBSE - XI Science - Chemistry - Structure of Atom

Please tell me the derivation of Bohrs Postulate of Angular Momentum from de Broglie's equation.

Asked by gurveersaini0405 8th May 2019, 8:17 AM
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CBSE - XI Science - Chemistry

Calculate the temperature at which the molarity and molality of pure water become equal.

Asked by pb_ckt 4th May 2019, 12:05 AM
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CBSE - XI Science - Chemistry

Pls solve it.

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Asked by pb_ckt 28th April 2019, 1:38 PM
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CBSE - XI Science - Chemistry

Pls solve it.

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Asked by pb_ckt 28th April 2019, 1:37 PM
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CBSE - XI Science - Chemistry

5 L of an alkane requires 25 L of oxygen for its complete combustion . If all volumes as measured at constant temperature an dpressure , the alkane is? A-Butane B-Isobutane C-Propane D-Ethane

Asked by Apoorva 27th April 2019, 5:20 PM
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CBSE - XI Science - Chemistry

Specific volume of cylindrical virus particle is 6.02×10^-2 cc/gm whose radius and length are 7 angstrom and 10 angstrom respectively.If NA=6.02×10^23,find molecular weight of virus.

Asked by pb_ckt 23rd April 2019, 9:06 PM
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