Amongst the following compounds, identify which are. insaluble, partially solable and. highly soluble in water?i. phenol - if toluene iii. formic acid iv. ethylene glycơl y. chloroform vi. pentanol.

Which among the following statements is correct? (i) Glycerol on reaction with oxalic acid at 110°C (383 K) and followed by heating and hydrolysis gives formic acid and glycerol. (ii) Glycerol on reaction withoxalic acid at 230°C (503 K) and followed by heating gives allyl alcohol. (iii) Glycerol on oxidation with dil. HNO_3 gives a mixture of glyceric and tartronic acid, (iv) Glycerol on oxidation with conc. HNO_3 gives glyceric acid.

Justify the following statements. i. Water mixed with formic acid cannot be separated by fractional distillation. ii. o -nitrophenol is steam volatile while p-nitrophenol is not. iii. Freshly prepared FeSO_4 solution is insisted during the test for nitrogen in Lassaignes test. iv. Copper spiral is used in the apparatus for Dumas method.

Name the reagents used in the following reactions: i Oxidation of a primary alcohol to carboxylic acid ii. Oxidation of a primary alcohol to aldehyde. iii. Bromination of phenol to 2.4,6- tribromophenol iv. Benzyl alcohol to benzoic acid. v. Dehydration of propan- 2 -ol to propene: vi. Butan- 2 -one to butan- 2-ol

Draw the structures of the following compounds. i: 3-Methylbutanal ii. p-Nitropropiophenone iii. p-Methylbenzaldehyde iv. 4-Methylpent- 3 -en-2-one v. 4-Chloropentan-2-one vi. 3-Bromo-4-phenylpentanoic acid vii. P,p'-Dihydroxybenzophenone viii.Hex-2-en-4-ynoic acid

What is the decreasing order of reactivity amongst the following compounds towardsaromatic electrophilic substitution? (I) chlorobenzene (II) benzene (III) anilinium chloride (IV) toluene

Which of the following statements are true? i) Rhamnose and deoxyribose are carbohydrates by their chemical behavior but cannot represented as hydrates of carbon ii) Formaldehyde and acetic acid do not behave like carbohydrate but can be represented by the general formula of carbohydrates, C_x(H_2O)_y iii) Raffinose on hydrolysis gives glucose and galactose only iv) Polysaccharides are also called non-sugars v) In disaccharides, if reducing groups of monosaccharides are bonded, they are non reducing in nature vi) Sorbose is an example of aldose

Which of following are open, close or nearly isolated systéms? i) Human beings, ii). the earth. iii) can of tomato soup iv) ice cube tray filled with water v) coffee in'a thermoflask vi) helium-filled balloon. .