p block
why BiF3 is ionic whereas other trihalides are covalent in nature?
What do you mean by the term tripod? Also state its uses?
Provide solution of this question. To neutralise completely 20 mL of 0.1 M aqueous solution of phosphorous acid (H3 PO3) the volume of 0.1 M aqueous KOH solution required is: (a) 40 mL (b) 20 mL (c) 10 mL (d) 60 mL
what are the examples of biodegradable polymers
20 g of hydrogen is present in 5 litre of vessel. Determine he molar concentration of hydrogen: (a) 4 (b) 1 (c) 3 (d) 2 Choose the right answer from above.
The acid value definition is the number milligrams of KOH needed to neutralize the acid present in one gram oil and fats however why not employ NaOH for the neutralization?
Describe briefly the functions of centrioles?
what is the molarity of the solution prepared by dissolving 75.5 g of pure KOH in 540 ml of solution
Briefly state the wavelengths which the human eye can see?
Determination of correct mol. Mass from Roult's law is applicable to :
Chromium(III) hydroxide is highly insoluble in distilled water but dissolves readily in either acidic or basic solution. Briefly explain why the compound can dissolve in acidic or in basic but not in neutral solution. Write appropriate equations to support your answer
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