TN State Board Samacheer Kalvi Online Test for 12th Std - Chemistry - English - Carbonyl Compounds and Carboxylic Acids

Question 1 Of 10

When an aldehyde is treated with Fehlings solution the colour change is

red to blue blue to red colourless to pink pink to colourless

Question 2 Of 10

The product obtained when formaldehyde reacts with acetaldehyde in presence of dilute NaOH is

3-hvdroxy propanol 3-hydroxy propanal 2-hvdroxy propanol 2-hydroxy propanal

Question 3 Of 10

The correct order of solubility in water is

HCHO < CH3CHO < CH3CH2CHO HCHO > CH3CHO > CH3CH2CHO HCHO < CH3CHO > CH3CH2CHO HCHO > CH3CHO < CH3CH2CHO

Question 4 Of 10

methyl propanoic acid compound A is

methyl magnesium bromide isopropyl magnesium bromide n-propyl magnesium bromide butyl magnesium bromide

Question 5 Of 10

When two molecules of an aldehyde or ketone having a – hydrogen atom react with dilute NaOH or KOH, the product formed is

(i) & (ii) (i) & (iii) (iii) & (iv) (ii) & (iv)

Question 6 Of 10

2 – methyl but -2 – ene on ozonolysis gives

ethanal propanone both (a) & (b) none of the above

Question 7 Of 10

Carboxylic acids turn the colour of litmus paper from

Yellow to orange red to blue blue to red red to colourless

Question 8 Of 10

Which among the following does not react with acetyl chloride?

methyl amine dimethyl amine trimethyl amine isobutyl amine

Question 9 Of 10

The role of barium sulphate in Rosenmund reduction is

catalyst reducing agent catalytic poison promoter

Question 10 Of 10

The correct order of incresing acid strength is

CH3COOH < ClCH2COOH < Cl2CHCOOH < CCl3COOH CH3COOH < CCl3COOH < Cl2CHCOOH < ClCH2COOH CCl3COOH < Cl2CHCOOH < ClCH2COOH < CH3COOH ClCH2COOH > CCl3COOH < Cl2CHCOOH < CH3COOH

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Chemistry - English Medium - Carbonyl Compounds and Carboxylic Acids

Samacheer Kalvi 12th Chemistry - Carbonyl Compounds and Carboxylic Acids - Book Back Questions in English Medium