2023 NECO Economics Past Questions

Which of these allelic pairs represent homozygous dominant trait?

1. A.TT✓ Correct
2. B.Tt
3. C.tt
4. D.Bb
5. E.bb

Which of the following statements about a gas is NOT correct?

1. A.It has no definite shape✓ Correct
2. B.It is compressible
3. C.Its molecules are closely packed
4. D.Its molecules gain kinetic energy when heated
5. E.Its molecules move about randomly

A bag contains p dozens of bananas and 3q of these proved to be bad. If I buy one third of the goods ones, how many do I get?

1. A.P -3q
2. B.$\frac{1}{3}$ (p - 3q)
3. C.3q
4. D.4p - q✓ Correct
5. E.12p - 3q

In the normal use of a simple microscope, a person sees an

1. A.erect, real and magnified image
2. B.erect, virtual and magnified image✓ Correct
3. C.inverted, virtual and magnified image
4. D.inverted, real and magnified image
5. E.inverted and real image the same size as the object

Ethene decolourises acidified potassium tetraoxomanganate(VII) solution. Which gas will decolourise bromine water?

1. A.CH4
2. B.C2H6
3. C.C3H6
4. D.C3H8✓ Correct
5. E.C6H6

Choose from the options lettered A - E the one that most appropriately completes each sentence You think i'm being funny ......... ?

1. A.am I
2. B.aren’t l
3. C.don’t you
4. D.Isn’t it✓ Correct
5. E.wasn’t it

Find the value of k such that $t^2$ + kt + $\frac{25}{4}$ is a perfect square

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

Given that (3 - y) ÷ 2x = (6y + 7) ÷ (4x - 5), find the value of x when y = 2

1. A.$\frac{64}{5}$
2. B.6
3. C.$\frac{5}{34}$✓ Correct
4. D.$\frac{-5}{34}$
5. E.$\frac{-64}{5}$

The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed

1. A.amoeboids
2. B.centrifugal motion
3. C.ciliary motion✓ Correct
4. D.cyclosis
5. E.osmosis

An organism with identical allelic genes is described as

1. A.dihybrid
2. B.heterozygous
3. C.homozygous✓ Correct
4. D.monohybrid
5. E.recessive