Chemistry Question and Answers

1. A metal M of equivalent mass E forms an oxide of molecular formula $M_x O_y$. The atomic mass of the metal is given by the correct equation

KEAM 2008 Some Basic Concepts of Chemistry

2. Reaction of trans 2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces

JEE Main 2006 Haloalkanes and Haloarenes

3. An example of a zero order reaction is

COMEDK 2005 Chemical Kinetics

4. Propan-1-ol can be prepared from propene by

AIIMS 2003 Alcohols Phenols and Ethers

5. Surface water contains

AFMC 2003 Environmental Chemistry

6. The lanthanide contraction is responsible for the fact that

AIPMT 1997 The d-and f-Block Elements

7. When methyl-t-butyl ether is formed ?

Odisha JEE 2004 Alcohols Phenols and Ethers

8. $RbO_2$ is

Odisha JEE 2008 Chemical Bonding and Molecular Structure

9. Magnetic moment of Cr²⁺ is nearest to

AIIMS 2012 The d-and f-Block Elements

10. With reference to the scheme given, which of the given statement(s) about T, U, V and W is/are correct?

IIT JEE 2012 Aldehydes Ketones and Carboxylic Acids

11. Chlcrobenzene $ \xrightarrow [ X] { Reaction} \, Phenol \, \xrightarrow [ Y] { Reaction} $ Salicylaldehyde. $X$ and $Y$ reactions are respectively

Gujarat CET 2011 Alcohols Phenols and Ethers

12. Biuret reagent contains

COMEDK 2011 Aldehydes Ketones and Carboxylic Acids

13. Which of the following set of properties belong to PCI$_5$?

J & K CET 2006 Chemical Bonding and Molecular Structure

14. Which of the following is the correct statement for PH₃?

AIIMS 1999 The p-Block Elements - Part2

15. Saturated solution of $KNO_3$ is used to make -alt-bridge- because

IIT JEE 2001 Electrochemistry

16. An organic compound (a) reacts with sodium metal (b) On heating with cone. $H_2SO_4$ (a) and (b) are respectively

AFMC 1998 Alcohols Phenols and Ethers

17. Assertion : Zinc displaces copper from copper sulphate solution.
Reason : The E$^{\circ}$_{298 K} of Zn is -0.76 V and that of Cu is +0.34 V.

AIIMS 1999 Electrochemistry

18. Terylene is a condensation polymer of ethylene glycol and

NEET 1999 Polymers

19. For the reduction of $NO^-_3$ ion in an aqueous solution $E^\circ$ is
+ 0.96 V. Values of $E^\circ$ for some metal ions are given below
$\, V^{2+}(aq)+2e^- \longrightarrow V;\, \, \, \, \, E^\circ = -1.19\, Vtt$
$\, Fe^{3+}(aq)+3e^- \longrightarrow Fe;\, \, \, \, \, E^\circ = -0.04 V$
$ Au^{3+}(aq)+3e^- \longrightarrow Au;\, \, \, \, \, E^\circ = +1.40\, V$
$ Hg^{2+}(aq)+2e^- \longrightarrow Hg;\, \, \, \, \, E^\circ = +0.86 V$
The pair(s) of metals that is/are oxidised by $NO^-_3$ in aqueous solution is (are)

IIT JEE 2009 Electrochemistry

20. Which of the following order for ionization energy is correct ?

AIPMT 1999 Classification of Elements and Periodicity in Properties

21. If p, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by

NEET 1989 States of Matter

22. The compound whose aqueous solution has the highest $P^H$ is

NEET 1988 Equilibrium

23. Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.
Reason: Bromine catalyses hydrolysis of acetamide.

AIIMS 2013 Aldehydes Ketones and Carboxylic Acids

24. Heart patients can be given

Delhi UMET 2007 Chemistry in Everyday Life

25. 720 g water contains, the number of moles

J & K CET 2003 Some Basic Concepts of Chemistry

26. In a set of reactions, acetic acid yielded a product D.
$CH_3COOH\xrightarrow{SOCL_2} A\xrightarrow [anhy. AICI_3]{Benzene}B\xrightarrow {HCN}C\xrightarrow {HOH}D$
The structure of D would be

Rajasthan PMT 2010 Aldehydes Ketones and Carboxylic Acids

27. Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectively. Which of the following statements is incorrect ?

COMEDK 2003 Thermodynamics

28. The aqueous solution of which of the following salt will have the lowest pH?

AIIMS 1996 Equilibrium

29. Copper sulphate dissolves in excess of KCN to give

AIPMT 2006 The d-and f-Block Elements

30. A useful member of lanthanides is

AFMC 1997 The d-and f-Block Elements

Chemistry Questions

1. A metal M of equivalent mass E forms an oxide of molecular formula $M_x O_y$. The atomic mass of the metal is given by the correct equation

2. Reaction of trans 2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces

3. An example of a zero order reaction is

4. Propan-1-ol can be prepared from propene by

5. Surface water contains

6. The lanthanide contraction is responsible for the fact that

7. When methyl-t-butyl ether is formed ?

8. $RbO_2$ is

9. Magnetic moment of Cr²⁺ is nearest to

10. With reference to the scheme given, which of the given statement(s) about T, U, V and W is/are correct?

11. Chlcrobenzene $ \xrightarrow [ X] { Reaction} \, Phenol \, \xrightarrow [ Y] { Reaction} $ Salicylaldehyde. $X$ and $Y$ reactions are respectively

12. Biuret reagent contains

13. Which of the following set of properties belong to PCI$_5$?

14. Which of the following is the correct statement for PH₃?

15. Saturated solution of $KNO_3$ is used to make -alt-bridge- because

16. An organic compound (a) reacts with sodium metal (b) On heating with cone. $H_2SO_4$ (a) and (b) are respectively

17. Assertion : Zinc displaces copper from copper sulphate solution.
Reason : The E$^{\circ}$_{298 K} of Zn is -0.76 V and that of Cu is +0.34 V.

18. Terylene is a condensation polymer of ethylene glycol and

20. Which of the following order for ionization energy is correct ?

21. If p, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by

22. The compound whose aqueous solution has the highest $P^H$ is

23. Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.
Reason: Bromine catalyses hydrolysis of acetamide.

24. Heart patients can be given

25. 720 g water contains, the number of moles

26. In a set of reactions, acetic acid yielded a product D.
$CH_3COOH\xrightarrow{SOCL_2} A\xrightarrow [anhy. AICI_3]{Benzene}B\xrightarrow {HCN}C\xrightarrow {HOH}D$
The structure of D would be

27. Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectively. Which of the following statements is incorrect ?

28. The aqueous solution of which of the following salt will have the lowest pH?

29. Copper sulphate dissolves in excess of KCN to give

30. A useful member of lanthanides is

Latest Updates

Chemistry Questions

1. A metal M of equivalent mass E forms an oxide of molecular formula $M_x O_y$. The atomic mass of the metal is given by the correct equation

2. Reaction of trans 2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces

3. An example of a zero order reaction is

4. Propan-1-ol can be prepared from propene by

5. Surface water contains

6. The lanthanide contraction is responsible for the fact that

7. When methyl-t-butyl ether is formed ?

8. $RbO_2$ is

9. Magnetic moment of Cr2+ is nearest to

10. With reference to the scheme given, which of the given statement(s) about T, U, V and W is/are correct?

11. Chlcrobenzene $ \xrightarrow [ X] { Reaction} \, Phenol \, \xrightarrow [ Y] { Reaction} $ Salicylaldehyde. $X$ and $Y$ reactions are respectively

12. Biuret reagent contains

13. Which of the following set of properties belong to PCI$_5$?

14. Which of the following is the correct statement for PH3?

15. Saturated solution of $KNO_3$ is used to make -alt-bridge- because

16. An organic compound (a) reacts with sodium metal (b) On heating with cone. $H_2SO_4$ (a) and (b) are respectively

17. Assertion : Zinc displaces copper from copper sulphate solution.Reason : The E$^{\circ}$298 K of Zn is -0.76 V and that of Cu is +0.34 V.

18. Terylene is a condensation polymer of ethylene glycol and

20. Which of the following order for ionization energy is correct ?

21. If p, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by

22. The compound whose aqueous solution has the highest $P^H$ is

23. Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.Reason: Bromine catalyses hydrolysis of acetamide.

24. Heart patients can be given

25. 720 g water contains, the number of moles

26. In a set of reactions, acetic acid yielded a product D. $CH_3COOH\xrightarrow{SOCL_2} A\xrightarrow [anhy. AICI_3]{Benzene}B\xrightarrow {HCN}C\xrightarrow {HOH}D$ The structure of D would be

27. Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectively. Which of the following statements is incorrect ?

28. The aqueous solution of which of the following salt will have the lowest pH?

29. Copper sulphate dissolves in excess of KCN to give

30. A useful member of lanthanides is

Latest Updates

9. Magnetic moment of Cr²⁺ is nearest to

14. Which of the following is the correct statement for PH₃?

17. Assertion : Zinc displaces copper from copper sulphate solution.
Reason : The E$^{\circ}$_{298 K} of Zn is -0.76 V and that of Cu is +0.34 V.

23. Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.
Reason: Bromine catalyses hydrolysis of acetamide.

26. In a set of reactions, acetic acid yielded a product D.
$CH_3COOH\xrightarrow{SOCL_2} A\xrightarrow [anhy. AICI_3]{Benzene}B\xrightarrow {HCN}C\xrightarrow {HOH}D$
The structure of D would be