Chemistry JAMB, WAEC, NECO AND NABTEB Official Past Questions

2SO_2(g) + O_2(g) \( \iff \)2SO_3(g)

\( \bigtriangleup H = -395.7kJmol^{-1} \)

In the reaction above, the concentration of 2SO_3(g) can be in creased by

Zn_(s) + CuSO_4(aq) \( \to \) ZnSO_4(aq) + Cu_(s)

In the reaction above, the oxidizing agent is

The radioactive emission with the least ionization power is

How many unpaired electron are in the p-orbitals of a fluorine atom?

The compound above is an

Use the following option above to answer this question. Which of the following compounds in solution will turn red litmus paper blue?

Use the above option to answer this question. The dehydration of ammonium salt of alkanoic acids produces a compound with the general formula

The IUPAC nomenclature for the compound above is

Choose the correct option from the graph above . 3Fe_(S) + 4H₂O_(g) ⇌ Fe₃O_4(s) + 4H_2(g). The equilibrium constant, K, of the reaction above is represented as

In the graph above, the activation energy of the catalyzed reaction is

From the diagram above, an ideal gas is represented by

An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the empirical formula
rn(C=12,H =1, O=16)

Which of the following fraction is used as raw material for the cracking process?

A primary amide is generally represented by the formula

The decarboxylation of ethanoic acid will produce carbon (IV)oxide and

The reaction between ammonia and ethyl ethanoate produces

2- methylpropan-2-ol is an example of a

Aluminium containers are frequently used to transport trioxonitrate (V) acid because aluminium

The coloured nature of transition metal ions are associated with their partially filled

Copper is displaced from the solution of its salts by most metals because it

A metal that forms soluble trioxosulphate (IV) ion is