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CBSE Class 12-science Answered

what is the hardest element
Asked by challacharan888 | 27 Apr, 2020, 09:13: PM
answered-by-expert Expert Answer
Carbon in the form of diamond is the hardest substance, which has a high melting and boiling point.
Answered by Ramandeep | 27 Apr, 2020, 10:47: PM

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CBSE 12-science - Chemistry
write iupac name of cyclic compound containing alcohol
Asked by guneetk44 | 28 Apr, 2024, 10:39: AM
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CBSE 12-science - Chemistry
The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively, at 350 K. Find out the composition of the liquid mixture if total vapour pressure is 600 mm Hg. Also find the composition of the vapour phase.
Asked by hannamaryphilip | 17 Apr, 2024, 11:20: PM
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CBSE 12-science - Chemistry
C-C=C-CHO ka iupac name
Asked by ukg8612 | 15 Apr, 2024, 07:36: PM
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CBSE 12-science - Chemistry
120 GM Naoh is dissolved in 3dm³ aqcus solution find out its molarity and normality
Asked by sameerteli003 | 08 Apr, 2024, 11:48: PM
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CBSE 12-science - Chemistry
bond theory
Asked by navadeepnavadeep242 | 19 Mar, 2024, 08:56: PM
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CBSE 12-science - Chemistry
Draw resonance structure of the following : 1. phenol chemistry
Asked by kavitabawane190 | 08 Mar, 2024, 05:24: PM
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CBSE 12-science - Chemistry
methods of preparation of amines
Asked by hanihope27 | 01 Mar, 2024, 08:33: PM
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CBSE 12-science - Chemistry
Why are equimolar solutions of sodium chloride and glucose not isotonic?
Asked by rashmij34 | 27 Feb, 2024, 04:42: PM
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CBSE 12-science - Chemistry
Why do transition metals and their compounds show catalytic activities?
Asked by anubhutiupadhaya | 27 Feb, 2024, 04:28: PM
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CBSE 12-science - Chemistry
At the same temperature, CO2 gas is more soluble in water than O2. Which one of them will have a higher value of KH, and why?   
Asked by sagarmishra | 27 Feb, 2024, 04:01: PM
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