List of top Chemistry Questions

\(\Delta H\) and \(\Delta S\) value of a reaction which is non-spontaneous at high T and spontaneous at low T is:
The reagent for Etard's reaction is:
Which of the following is non-aromatic?
Which of the following has the smallest ionic radius?
Which of the following have a complete octet?
Which of the following is diamagnetic?
Which among the following shows -R effect?
A compound formed by reacting CoCl\(_2\) with excess NH\(_3\) gives 1 mol of AgCl with AgNO\(_3\). Form the compound:
Properties of canal rays:
The carboxylic acid used widely in the leather industry is?
IUPAC name of C\(_6\)H\(_14\) is:
Which of the following is a non-polar molecule?
Find pH of the solution if \([H^+] = 2 \times 10^{-4} \, \text{mol/L}\)
Which is a heterocyclic compound?
Choose the incorrect statement:
A shell in projectile motion explodes while in motion, what is the trajectory of the center of the fragments?
The correct order of boiling point:
CH\(_3\)-CH\(_2\)-CH\(_2\)-CH\(_2\)-NH\(_2\), CH\(_3\)-CH\(_2\)-NH-CH\(_2\)-CH\(_3\), CH\(_3\)-CH\(_2\)-N(CH\(_3\))\(_2\)
The pKa value of a 0.1 M solution of a weak acid HA with pH = 4 is:
Which element in the 3d series can form dihalides?
Acetone can be converted to 2-methylpropan-2-ol using:
The element that has the highest melting point in the 3d series is:
Which of the following amino acids are synthesized in our body?
Which among the following acts as a Lewis acid?
Aryl halides react with Na in dry ether gives diphenyls. Name of the reaction is:
In the reaction \( 3Mg + N_2 \rightarrow Mg_3N_2 \), the oxidation number of Mg changes is: