Chemistry JAMB, WAEC, NECO AND NABTEB Official Past Questions

The shape of the water molecule is_______?

Which of the following arrangements shows increasing order of reactivity of the halogens?

An unsaturated solution differs from a saturated solution at a given temperature because it

Aluminium is used in the manufacture or aircraft because it

Metals can be stretched into wires because they are

The mass of potassium hydroxide required to make 300.ocm³ of 0.4 moldm^-3 solution is {KOH = 56.0}

Chemicals that are produced in small quantities and with very degree of purity are

The boiling points of HF, H2O and NH3 increase in the order of

When element \(_{20}\)Y combines with element \(_8\)Z, it forms

How many electrons are present in \(^9_4Be^{2+}\)?

An atom X consist of 6 protons, 6 electrons and 7 neutrons. Which of the following representations of the atom is correct?

The following atoms of carbon ¹²₆C, ¹³₆C and ¹⁴₆C can be described as?

N₂O_4(aq) \(\rightleftharpoons\) 2NO_2(g) \(\bigtriangleup\)H = +ve

In the reaction above, an increase in temperature will

CH_4(g) + CI_2(g) \(\to\) CH₂CI_(s) + HCI_g

The major factor that influences the rate of the reaction above is

From the diagram above, an ideal gas can be represented by

The curve depicts titration between a strong acid of pH

The diagram represents

In the diagram above, X is the

The functional groups present in the compound above are

n monosaccharide \( \underset{Q}{\stackrel{P}{\rightleftharpoons}} \) polysaccharide –n water.

In the process above, P and Q respectively represent

The compound above exhibits