Two moles of compound P were placed in a vessel. The vessel was heated and compound P was partly decomposed to produce Q and R. A dynamic equilibrium between chemicals P, Q and R was established. At equilibrium x moles of R were present and the total number of moles present was (2 + x/2). What is the equation for this equilibrium reaction?

The table shows the partial pressures in an equilibrium mixture formed by the Haber process. 3H2(g) + N2(g) ⇌ 2NH3(g)…

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Which compound will decolourise Br₂(aq)?

Alkenes react with aqueous hydrogen bromide. The reaction proceeds via an intermediate carbocation. The more stable t…

A sample of 2.30 g of ethanol is mixed with an excess of aqueous acidified potassium dichromate(VI). The reaction mix…