19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Phenols contains acidic H it reacts with KOH.
Amines are basic. Therefore, do not react with KOH.
KOH can be used as a drying agent for
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75g of sample neutralised 10 mL of 1M H SO . The percentage of nitrogen in the soil is (CBSE AIPMT 2014)
Which of the following is the test of alcohol?
Which of the following compound Discharge bromine solution to colourless without evolving HBr?
Which of the following will give Tollen’s test?
Schiff test is used for the identification:
Zeisel’s method is use for the determination of
Which of the following is the test of carbohydrates?
Acids reacts with KOH to form salt.
Paper chromatography is an example of : (NEET 2020)
The most suitable method of separation of 1: 1 mixture of ortho and para-nitrophenols is (NEET 2017)
Assertion (A): A mixture of o-nitrophenol and p- nitrophenol can be separated by steam distillation Reason (R): p-Nitrophenol is steam volatile while o- nitrophenol is not steam volatile. (AIIMS 2015)
0.30 g of an organic compound containing C, H and O on combustion yields 0.44 g CO2 and 0.18 g H2O. If one mole of compound weighs 60, then molecular formula of the compound is (Karnataka CET 2015)
In the Lassaigne’s test for the detection of nitrogen in the organic compound, the appearance of blue coloured compound is (West Bengal PMT 2015)
In sodium fusion test of organic compounds N is converted to (Bihar CECE 2015)
Paper chromatography has following mobile and stationary phases respectively (Bihar CECE 2015)
An organic compound which produces a bluish green coloured flame on heating in presence of copper is (AIIMS 2014)
Camphor is purified by (Kerala PMT 2014)
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75g of sample neutralised 10 mL of 1M H SO . The percentage of nitrogen in the soil is (CBSE AIPMT 2014)
Lassaigne's test is used in qualitative analysis to detect (UK PMT 2014)
In which among the following compounds presence of nitrogen cannot be detected by Lassaigne's method? (MHT CET 2014)
Which one of the following methods can be used to separate a mixture of ortho and para-nitrophenols? (EAMCET 2014)
A liquid which decomposes at its boiling point can be purified by (Manipal 2014)