Chemistry Question Bank

Phenol and benzoic acid can be separated by

Among the following which compound gives precipitate with AgNO₃ solution? (a) (b) (c)

Compounds which do not contain halogen but give positive Beilstein test?

How will you separate iodine from sodium chloride?

Sublimation is a process in which a solid (KCET 2010)

Phenols contains acidic H it reacts with KOH.

In Duma's method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be (Aqueo…

Which of the following observations is correct and is used in the identification of carboxylic acids?

An organic compound is heated with HNO₂ at 0 °C and then the resulting solution is added to a solution -napthol whereby a brilliant red dye is produced. The observations indicate that the compound possesses.

A mixture of acetone and CCl₄ can be separated by

Kjeldahl's method cannot be used for the estimation of nitrogen in (AFMC 2013)

Which of the following test can use for separation of alcohol and phenol?

Azeotropic distillation is used only to seperate azeotropes ie. constant boiling mixture. Here acetone & CCl₄ are not azeotropic mixture. Hence (a) is not correct.

CCl₄ & acetone differ in their boiling Point. So it can be seperated through fractional distillation. Hence (b) is correct.

In which among the following compounds presence of nitrogen cannot be detected by Lassaigne's method? (MHT CET 2014)

is a polymer which have monomer units as (a) (b) (c) (d)

[NH(CH₂)NHCO(CH₂)₄CO]n is a (AIPMT 2006)

The [NH(CH₂)₆NHCO(CH₂)₄CO]n is a

In a polymer sample, 30% of molecules have a molecular mass 20000, 40% have 30000 and the rest have 60000. What is the weight average molecular mass of the polymer? (Kerala CEE 2006)

In case of condensation of polymers (J&K CET 2008)

Structures of some common polymers are given. Which one is not correctly presented? (AIPMT 2009)

Teflon is a polymer of (Guj CET 2010)

Which compound/set of compounds is used in the manufacture of nylon-6,6? (BVP 2010)

Polymer used in bullet proof glass is (RPMT 2010)

Which one of the following sets forms the biodegradable polymer? (AIPMT 2012)