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CBSE Class 11 Science Free Doubts and Solutions

CBSE - XI Science - Chemistry

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Asked by dineshchem108 14th December 2018, 9:58 PM
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CBSE - XI Science - Chemistry

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Asked by dineshchem108 14th December 2018, 9:49 PM
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CBSE - XI Science - Chemistry

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Asked by dineshchem108 14th December 2018, 8:18 PM
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CBSE - XI Science - Chemistry

Balance the equation XeF6+H2O=XeO2F6+HF

Asked by pujadevi9819 14th December 2018, 8:03 PM
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CBSE - XI Science - Chemistry

I read in  my book that ' when a mixture of FeO and Fe2O3 is heated in air to a constant mass gains 5% by mass' . Please explain the meaning of this line.How mass gets increased 

Asked by govtsecschoolnayaganv051 14th December 2018, 7:21 PM
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CBSE - XI Science - Chemistry

Why mass increases with increase in temperature ? Explian in detail please

Asked by govtsecschoolnayaganv051 14th December 2018, 7:19 PM
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CBSE - XI Science - Chemistry

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Asked by dineshchem108 9th December 2018, 10:06 PM
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CBSE - XI Science - Mathematics

A circular sheet is folded into four quadrants. A cone is then made by taking three folds on one side and the fourth one on other side. Find the vertical angle of the cone thus formed. Ans 60 degree

Asked by rushabhjain.a 9th December 2018, 12:08 PM
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CBSE - XI Science - Mathematics

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Asked by dineshchem108 6th December 2018, 10:43 PM
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CBSE - XI Science - Mathematics

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Asked by dineshchem108 6th December 2018, 10:39 PM
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