List of top Chemistry Questions

A ligand can also be regarded as

Monomer which is used to make Poly Vinyl Chloride (PVC) is called

Name the method used for separation of sulphide ores?

Helium is preferred to be used in balloons instead of hydrogen because it is

\(ICl_2^-\) is isostructural with

Which of the following transition metal ion has magnetic moment \(3.87\) BM?

\(P_4\) reacts with \(X\) selectively to give \(P_4O_6\). The \(X\) is

An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to

The half-cell reaction for the SHE is given by

Surface tension of lyophilic sol is

What will be the order of the reaction when the initial concentration is doubled the time of half reaction is doubled?

Saturated solution of \(KNO_3\) is used to make salt bridge because

One mole of component \(X\) and two moles of component \(Y\) are mixed at room temperature to form an ideal binary solution. The \(\Delta H_{mix}\) is

The molecular mass of acetic acid dissolved in water is \(60\) and when dissolved in benzene it is \(120\). This difference in behaviour of \(CH_3COOH\) is because

Choose the correct statement:

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture

Statement-I : Stability of +1 oxidation state increases as Ga< In < Tl
Statement-II : Stability of +1 oxidation state increases down the group due to inert pair effect.

Assertion: Trans But-2-ene is less polar than cis But-2-ene
Reason: Trans But-2-ene has zero dipole moment

From the given information, calculate enthalpy of formation of 2 moles of $C_6H_6$(l) at 25°C. Given: $CH(C_6H_6$(l)) = –3264.6 kJ/mol $CH(C(s))$ = –393.5 kJ/mol $fH(H_2O(l))$ = –285.83 kJ/mol

The products obtained when chlorine gas reacts with cold and dilute aqueous $NaOH$ are:

Which of the following compound is optically active?

Consider the reaction:
Fe₂0₃(s) + 3CO(g) = 2Fe(s) + 3CO₂(g)
Which of the following will not affect the equilibrium state:
(I) Addition of Fe₂O₃
(II) Addition of CO₂
(III) Decreasing mass of Fe₂O₃
(IV) Removal of CO

We have two complexes, [Fe(H₂O)₆]²⁺ and [Cu(H₂O)₆]²⁺ , the magnetic properties respectively are

If the number of neutrons in the most abundant isotope of boron is 'x' and its highest oxidation state in unsaturated compound is 'y', then find the value of (x+y).