General Science 8th MCQs Test - by youth leaders Balochistan

1. Corban dioxide helps in burning of things

A.None of them

B.both of them

C.False

D.True

2. The human excretory system consists of

A.Both of them

B.None of them

C.1 Kidney

D.2 kidneys

3. The process in which the cell is divided in two parts is called

A.Cell division

B.None of them

C.Reproduction

D.Cell wall

4. What prevents ultraviolent radiation of sun from reaching the surface of earth

A.Ozone

B.None of them

C.Sky

D.Crust

5. The chemical reaction in which heat is released is called

A.Exothermic reaction

B.Heat reaction

C.Chemical reaction

D.None of them

6. The pH of a strong acid is equal to.............

A.5

B.7

C.None of them

D.1

7. Burning is an example of

A.None of them

B.Heat reaction

C.Atomic reaction

D.Chemical reaction

8. The unit of inheritable charactrics is

A.Genes

B.Brain

C.None of them

D.DNA

9. What produces insulin to human body

A.Stomach

B.Pancreas

C.None of them

D.Liver

10. What is the functional unit of kidney

A.Unrainy Bladder

B.Nephron

C.None of them

D.Ureter

11. ............... React chemically with fat or oil to form soap

A.None of them

B.Acids

C.Alkalis

D.Sulpher

12. The action carried out automatically is called

A.Indirect action

B.Reflection action

C.Direct Action

D.None of them

13. Which of the following is sensory organ

A.Liver

B.Eye

C.Heart

D.None of them

14. The perpendicular force acting on unit surface area of an object is called...............?

A.Pressure

B.None of them

C.Volume

D.Density

15. The shape of chromosomes is like

A.X or Y

B.Only Y

C.Only X

D.None of them

16. The number of chromosomes in human sex cell is

A.43

B.23

C.None of them

D.32

17. The international system of units was introduced in

A.None of them

B.1960

C.1898

D.1964

18. Zygote is formed by fusion of............... gametes

A.None of them

B.Three

C.Two

D.Six

19. Acid turns litmus paper

A.Blue

B.Both of them

C.None of them

D.Red

20. The meniscus of mercury is

A.Concave

B.None of them

C.Convex

D.Both of them

21. Acid turns methyl orange solution

A.Blue

B.None of them

C.Both of them

D.Red

22. Balance is an instrument used for measurement of

A.Mass

B.Time

C.None of them

D.Force

23. One atom of caseium_133 Completes 9,192,631, 770 vibrations in;

A.One second

B.None of them

C.One day

D.One hour

24. The body actions that are performed prior thought are?

A.Reflex action

B.Involuntary actions

C.None of them

D.Voluntary actions

25. CO2 is obtained by heating

A.None of them

B.Neutron

C.Calcium carbonate

D.Atom

26. In any chemical reaction ;

A.Matter can be destroyed

B.Matter can created

C.None of them

D.Matter can neither be created nor be destroyed

27. The central nervous system consists of

A.Motor Neurons

B.None of them

C.Sensory neurons

D.both of them

28. Chromosomes are consist of DNA and

A.Genes

B.None of them

C.Protein

D.Brain

29. The conversion of compound in ion is called

A.Ionization

B.Realization

C.None of them

D.both of them

30. The energy resources soon can exhaust due to their

A.None of them

B.Zero Use

C.Less Use

D.Unwise use

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