List of top Chemistry Questions

The correct order of the stability of different conformations of cyclohexane is:
(A). chair
(B). boat
(C). twist boat
(D). half chair
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Assign the R and S configuration to the following molecule.Quest problem
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Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is ______.
B, C, N, S, O, F, P, Al, Si
What is another term used for the probability factor (P) in collision theory?
Which factor in the Arrhenius equation corresponds to the fraction of molecules having kinetic energy greater than activation energy?
Kohlrausch law is related to which of the following term?
Which term of molar conductivity is used when the concentration of electrolyte approaches zero?
What is the overall order of the reaction? Rate = k[A]½ [B]3/2
Molal elevation constant is also known as:
Which among the following compounds show metal excess defect due to anionic vacancy?
Which of the following solvents is having its lowest Ebullioscopic constant?
SolventBoiling Point (K)
Chloroform334.4
Diethyl Ether307.8
Benzene353.3
Carbon disulphide319.4
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Which of the following gases at 298 K and 1 atm pressure is having maximum solubility in water?
(A) Methanal, KH = 0.000018
(B) Argon, KH = 40.3
(C) Methane, KH = 0.41
(D) CO2, KH = 1.6
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Match List-I with List-II:
List-I (Amino Acid)List-II (Nature of Amino Acid)
(A) Valine(I) Basic amino acid
(B) Glycine(II) Neutral optically active amino acid
(C) Lysine(III) Acidic amino acid
(D) Glutamic acid(IV) Neutral optically inactive amino acid
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Which of the following is/are the bases of DNA?
(A) Adenine
(B) Uracil
(C) Thymine
(D) Cytosine
Match List-I with List-II:
Figure

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Match List-I with List-II:
List-IList-II
(A) Mn2+(I) Pyrolusite ore
(B) Spin only Magnetic Moment(II) An alloy of 4f metal, iron and traces of S, C, Al and Ca
(C) MnO2(III) μs = √n(n + 2) BM
(D) Misch metal(IV) Highest oxidation states

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The correct statement/statements from the options given below is/are:
(A) Diazonium salts of aromatic amines are less stable than diazonium salts of aliphatic amines.
(B) Ethylamine is insoluble in water.
(C) Gabriel phthalimide synthesis can be used to prepare primary amines.
(D) Because of +R-effect of–NH2 group, aniline will undergo Friedel-Crafts acylation reaction.
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Which of the following ions will be coloured in the aqueous solution?
(A) Ti3+
(B) Nb3+
(C) Cu+
(D) Y3+
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Consider the following compounds:
compounds
Arrange these compounds in the increasing order of rate of hydrolysis:
Which of the following compounds will undergo Aldol condensation reaction?
Aldol condensation reaction

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Arrange the following rate constant units in increasing order of their order of reaction:(A) sec-1
(B) mol L-1 sec-1
(C) mol-1 L sec-1
(D) mol-1 L2 sec-1
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Arrange the following in increasing order of their osmotic pressure generation at 298 K:
(The cell wall is permeable to water and not to the solute molecules)
(A) If a cell containing 0.5 moles of solute dissolved in 1 L of water is immersed in pure water.
(B) If a cell containing 0.25 moles of solute dissolved in 1 L of water is immersed in pure water.
(C) If a cell containing 0.1 moles of solute dissolved in 0.01 L of water is immersed in pure water.
(D) If a cell containing 0.2 moles of solute dissolved in 0.05 L of water is immersed in pure water.
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Which among the following is a strong field ligand?
For an SN2 reaction, arrange the following alkyl halides in increasing order of reactivity:
(A) CH3CH2CH2CH2
(B) CH3CH2CH(Br)CH3
(C) (CH3)3
(D) (CH3)2CHCH2
A first-order reaction has a half-life of 693 sec. What will be its rate constant?