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in borontriiodide distance between two I atoms is found to be 3.54. if radius of covalent bonded I atom is 1.33. what is covalent radius of boron
Ionic compounds do not have: (1) Hard and brittle nature (2) High melting and boiling point (3) Directional properties (4) Soluble in polar solvents Ans: Direction
what is indicators
Q. Describe the Freezing - Techniques of preservation? This is a method of preservation using low temperature. The chief preservative effect of freezing lies in the inability o
Compute the blood volume within the body of horse: Problem: A 0.6 cm 3 solution containing 7.5 µCi /cm 3 of 59 Fe was injected into the blood stream of a horse After e
chromotographic method explain
The number of unpaired electrons in an O 2 molecule is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
Aldehydes and Ketones Carbonyl compounds are of two types, ketones and aldehydes. Both of them comprise a carbon-oxygen double bond frequently known as carbonyl group.
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as chromium, manganese etc. Explain why? Ans) Aluminium is an highly electropositive metal
What are trihydric alcohols? What are their preparation methods? What are their physical properties?
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