Chemistryaldehydes-ketones-and-carboxylic-acids2021easy
Which one of the following compounds will give orange precipitate when treated with 2, 4-dinitrophenyl hydrazine?
Chemistryaldehydes-ketones-and-carboxylic-acids2021easy
The major products formed in the following reaction sequence A and B are :
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is :
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
The structure of the starting compound P used in the reaction given below is :
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
Given below are two statements :
Statement I : Ethyl pent-4-yn-oate on reaction with CH3MgBr gives a 3-alcohol.
Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH3MgBr.
In the light of the above statements, choose the most appropriate answer from the options given below :
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
Which one of the following reactions will not yield propionic acid?
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
The structure of product C, formed by the following sequence of reactions is :
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
The structures A and B formed in the following reaction are : [Ph = C6H5]
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
For the reaction given below :-
The compound which is not formed as a product in the reaction is a :
Chemistryaldehydes-ketones-and-carboxylic-acids2021easy
Experimentally reducing a functional group cannot be done by which one of the following reagents?
Chemistryaldehydes-ketones-and-carboxylic-acids2021medium
In the following sequence of reactions a compound A, (molecular formula C6H12O2) with a straight chain structure gives a C4 carboxylic acid. A is :
Chemistryaldehydes-ketones-and-carboxylic-acids2021easy
Given below are two statements :
Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.
Statement II : The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.
In the light of the above statements, choose the most appropriate answer from the options given below :
Chemistrysome-basic-concepts-of-chemistry2021easy
Complete combustion of 1.80 g of an oxygen containing compound (CxHyOz) gave 2.64 g of CO2 and 1.08 g of H2O. The percentage of oxygen in the organic compound is :
Chemistrysome-basic-concepts-of-chemistry2021medium
The exact volumes of 1 M NaOH solution required to neutralise 50 mL of 1 M H3PO3 solution and 100 mL of 2 M H3PO2 solution, respectively, are :
Chemistryisolation-of-elements2021easy
The major components in "Gun Metal” are :
Chemistryisolation-of-elements2021easy
Which of the following ore is concentrated using group 1 cyanide salt ?
Chemistryisolation-of-elements2021easy
Math List - I with List - II.
List I (Metal)
List II (Ores)
(a)
Aluminium
(i)
Siderite
(b)
Iron
(ii)
Calamine
(c)
Copper
(iii)
Kaolinite
(d)
Zinc
(iv)
Malachite
Choose the correct answer from the options given below :
Chemistryisolation-of-elements2021easy
Ellingham diagram is a graphical representation of :
Chemistryisolation-of-elements2021easy
The major components of German Silver are :
Chemistryisolation-of-elements2021easy
The method used for the purification of Indium is :