List of top Chemistry Questions

Which of the following is formed when SO3 is absorbed by concentrated H2SO4?
The crystal field theory is successful in explaining which of the following?
A reaction gas mixture contains 50%, 30%, 20% of A, B and C by volume respectively. The mixture undergoes the following reactions: \[ \text{(i) } A + 2B \rightarrow P_1 \\ \text{(ii) } 2P_1 + 3C \rightarrow P_2 \] Choose the correct answer if the reaction completes.

Which of the following are extensive properties?
\(Heat capacity \quad (B) Entropy \quad (C) Gibbs Energy \quad (D) Concentration \quad (E) Vapour pressure\)

Match the Following: 

ProcessOptionExpression
A. Isothermal processiv\( W = -nRT \ln\left( \frac{V_f}{V_i} \right) \)
B. Adiabatic processiii\( W = \Delta U \)
C. Isobaric processii\( W = -P \times \Delta V \)
D. Isochoric processi\( q = \Delta U \)
Identify the major product of the following reaction (Zn-Hg/HCl reduction).
Zn-Hg/HCl reduction
Identify the major product of the following reaction: bromination of aniline (Br2} + NaOH).
bromination of aniline (Br2 + NaOH).
Pernicious anemia is caused due to deficiency of which vitamin?
Which of the following vitamins cannot be stored in the body?
Identify the major product (Y) from the following reaction.
major product (Y) from the following reaction
Which among the following will have highest density?
An aryl carboxylic acid on treatment with sodium hydrogen carbonate liberates a gaseous molecule. Identify the gas molecule liberated.
Finkelstein reaction is used for the synthesis of
38.6 A of current is passed for 100 s through aqueous CuSO4 using platinum electrodes. Find mass of Cu deposited and volume of gas evolved (Cu = 63.54 g mol-1)
The macromolecular colloids of the following are:
The time required for completion of 93.75% of a first order reaction is $x$ minutes. The half-life of it (in minutes) is
Assertion (A): Transition metals and their complexes show catalytic activity.
Reason (R): The activation energy of a reaction is lowered by the catalyst.
In the reaction of phosphorous with conc. HNO3, the oxidized and reduced products respectively are
Assertion (A): Animal skins are colloidal in nature.
Reason (R): Animal skin has positively charged particles.
The hybridizations of carbon in graphite, diamond and C60 are respectively
Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list: -OH, -CN, COOH, -OCH3, -NHCOCH3, -CHO
The major product of the following reaction is (Grignard Reagent with D2}O)
Grignard Reagent with D2O
x% (w/v) solution of urea is isotonic with 4% (w/v) solution of non-volatile solute of molar mass 120 g mol-1. The value of x is
A solution containing 6.0 g of urea is isotonic with a solution containing 10 g of a non-electrolytic solute X. The molar mass of X (in g mol\textsuperscript{-1}) is
Match List I with List II: