Chemistry Questions

2. The shape of a molecule of NH$_3$, in which the central atom contains a lone pair of electrons, is

Maharashtra CET 2003 Chemical Bonding and Molecular Structure

3. The process of zone refining is used in the purification of

KCET 2013 General Principles and Processes of Isolation of Elements

9. The radii of the F, $F^-$, O and $O^{2-}$ are in the order

EAMCET 1998 Classification of Elements and Periodicity in Properties

11. Faraday's laws of electrolysis are related to the

IIT JEE 1983 Electrochemistry

14. Sanger's reagent is used for the identification of

Odisha JEE 2009 Biomolecules

15. The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :

JEE Main 2016 Organic Chemistry – Some Basic Principles and Techniques

17. The metal oxide which cannot be reduced to metal by carbon is :

NEET 2013 General Principles and Processes of Isolation of Elements

18. The reagent with which both acetaldehyde and acetone readily react is

COMEDK 2005 Aldehydes Ketones and Carboxylic Acids

19. $\alpha$-Particles can be detected by using

AIIMS 2005 Structure of Atom

21. In acidic medium, which of the following becomes colourless?

AIIMS 2018 The d-and f-Block Elements

25. The most important chemical method to
resolve a racemic mixture makes use of the
formation of

AIPMT 1994 Organic Chemistry – Some Basic Principles and Techniques

30. Which of the following represents the Lewis structure of $N_2$ molecule ?

KCET 2006 Chemical Bonding and Molecular Structure