paper-1a – Vertex

M25-CHEM-HL-TZ3-P1A-Q40

Which of these ions would be a suitable species to react with benzene in a substitution reaction?

The following occurs when tin is added to separate solutions of lead(II) nitrate, \( Pb(NO_3)_2 \), and manganese(II) nitrate, \(

What are the products of the electrolysis of molten aluminium oxide, \( Al_2O_3(l) \)?

Which compound can be reduced to produce butanal?

Consider the following standard electrode potentials: \( Zn^{2+}(aq) + 2e^- \rightleftharpoons Zn(s) \), \( E^{\ominus} = -0.76 \, V \)

Which solution is acidic at \( 25^{\circ}C \)?

Which equation correctly describes a chemical reaction?

Which of these bases has the strongest conjugate acid? Base properties: \( NH_3 \): \( K_b = 1.8 \times 10^{-5}

What is the pH of a buffer solution which contains \( 0.500 \, mol \, dm^{-3} \) of methanoic acid

What is the pH of \( 0.0010 \, mol \, dm^{-3} \, HCl(aq) \)?