List of top Chemistry Questions

For the reaction : $ \ce{H_2 +I_2 -> 2HI} $ , the differential rate law is
$2N HCl$ solution will have same molar concentration as a
Benzoylation of phenol in alkaline medium is known as
Addition of sodium acetate to $0.1 \,M$ acetic acid will cause
The $IUPAC$ name of $CH_{3}-CH=CH-C \equiv CH$ is
What volume of oxygen gas $(O_2)$ measured at $0^\circ C$ and 1 atm, is needed to bum completely 1L of propane gas $(C_3H_8)$ measured under the same conditions?
Green chemistry means such reactions which
$Cl - P - Cl$ bond angles in $PCl_5$ molecule are
The dissociation equilibrium of a gas $ AB_2 $ can be represented as $2 A B_2(g) \rightleftharpoons 2 A B (g) + B_2 (g) $ The degree of dissociation is $x$ and is small compared to $1$. The expression relating the degree of dissociation (x) with equilibrium constant $K_p$ and total pressure $p$ is
Which of the following are not state functions? (I) q + W (II) q (III) w (IV) H-TS
Standard free energies of formation (in kj/mol) at 298 K are -237.2, -394.4 and -8.2 for $H_2O(l),CO_2(g) $ and pentane (g), respectively. The value of $E^0_{cell} $ for the pentane-oxygen fuel cell is
If uncertainty in position and momentum are equal, then uncertainty in velocity is
Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the $ H^+ $ ion concentration in the mixture?
The structure of the compound formed, when nitrobenzene is reduced by lithium aluminum hydride \((LiAlH_4)\) is
The maximum number of molecules is present in
Difference between $S$ and $ S^{2-} $ as $ S^{2-}$ has
The major product $P$ in the following reaction is $ C{{H}_{3}}-CH=C{{H}_{2}}\xrightarrow[Peroxide]{HI}P $
Alkyl cyanides undergo Stephen reduction to produce
In the reaction, $ {PCl_{3(g)} + Cl_{2(g)} <=> PCl_{5(g)}}$ at equilibrium
Helium is used in balloons in place of hydrogen because it is
An octahedral complex is formed when hybrid orbitals of the following type are involved
Galvanic cell is a device in which
Of two oxides of iron, the first contained $22\%$ and the second contained $30\%$ of oxygen by weight. The ratio of weights of iron in the two oxides that combine with the same weight of oxygen, is
Identify the pair of gases that have equal rates of diffusion
In case of condensation of polymers