2022 NECO Civic Education Past Questions

$ ^{234}_{90}Th → ^{234}_{91}Pa + X $ In the nuclear reaction above, X is

1. A.$ ^0_1e $
2. B.$ ^0_{-1}e $
3. C.$ ^4_2He $✓ Correct
4. D.$ ^1_0n $
5. E.$ ^1_1p$

The oxidation number of X in $XO_{4}^{3-}$ is

1. A.1
2. B.-2✓ Correct
3. C.3
4. D.4
5. E.5

Find x if (x - 2)2 = 1$\frac{7}{9}$

1. A.$\frac{2}{3}$ or $\frac{2}{7}$
2. B.3$\frac{1}{3}$ or $\frac{2}{3}$
3. C.3$\frac{7}{9}$ or $\frac{2}{7}$✓ Correct
4. D.3$\frac{1}{3}$ or $\frac{7}{9}$
5. E.$\frac{3}{7}$ or $\frac{2}{9}$

The diagonals of a rhombus are 16cm and 30cm long. What is the perimeter of the rhombus

1. A.68cm
2. B.72cm
3. C.80cm✓ Correct
4. D.88cm
5. E.92cm

How much heat is required to convert 5.0g of ice at 0 ° C to water at the boiling point? (Specific latent heat of ice = 336Jg-1 specific heat capacity of water = 4.2Jg-1K-1)

1. A.420 J
2. B.1680 J✓ Correct
3. C.1701 J
4. D.2100 J
5. E.3780 J

$ ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy $ The equation above represent a/an

1. A.alpha particle emission
2. B.endothermic reaction
3. C.nuclear fission✓ Correct
4. D.nuclear fusion
5. E.thermal dissociation

The high boiling point of hydrogen fluoride can be explained in terms of?

1. A.covalent bonds.
2. B.dative bonds.
3. C.dipole-dipole bonds
4. D.electrovalent (ionic) bonds.✓ Correct
5. E.hydrogen bonds.

Which of the following is NOT a function of placenta in mammals?

1. A.absorption of food✓ Correct
2. B.gaseous exchange
3. C.removal of wastes
4. D.secretion of hormones
5. E.secretion of enzymes.

When a change in the demand for commodity A leads to a change in demand for commodity B in the same direction, demand for A & B is

1. A.A. competitive demand✓ Correct
2. B.B. complementary demand
3. C.C. composite demand
4. D.D. independent demand

Find the 19th term of the A.P. $\frac{5}{6}$, $\frac{8}{6}$, $\frac{11}{6}$.................

1. A.7$\frac{1}{2}$
2. B.9
3. C.9$\frac{1}{2}$
4. D.9$\frac{5}{6}$✓ Correct
5. E.10