Class 12th

The mixture of chloroxylenol and terpineol is an example of

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Dacron is an example of polyester polymer.

Reason R : Dacron is made up of ethylene glycol and terephthalic acid monomers.

In the light of the above statements, choose the most appropriate answer from the options given below.

In Friedel-Crafts alkylation of aniline, one gets

Two isomers (A) and (B) with molar mass 184 g/mol and elemental composition C, 52.2%; H. 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid respectively on oxidation with KMnO₄. Isomer 'A' is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO₃. Isomer 'A' and 'B' are respectively

Kindly consider the following figure

Which of the following carbocations is most stable?

Sulphur dioxide is one of the components of polluted air. SO₂ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO₂ is

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

Number of lone pair(s) of electrons on central atom and the shape of BrF₃ molecule respectively.

Amongst baking soda, caustic soda and washing soda, carbonate anion is present