General Science 8th MCQs Test - YLB Online Educational Forum

1. The conversion of compound in ion is called

A.both of them

B.Ionization

C.None of them

D.Realization

2. The energy resources soon can exhaust due to their

A.Zero Use

B.None of them

C.Unwise use

D.Less Use

3. The action carried out automatically is called

A.Direct Action

B.Indirect action

C.None of them

D.Reflection action

4. Acid turns methyl orange solution

A.Red

B.None of them

C.Blue

D.Both of them

5. The meniscus of mercury is

A.Both of them

B.Concave

C.Convex

D.None of them

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

A.Cell wall

B.None of them

C.Cell division

D.Reproduction

7. Corban dioxide helps in burning of things

A.True

B.None of them

C.both of them

D.False

8. The human excretory system consists of

A.2 kidneys

B.Both of them

C.None of them

D.1 Kidney

9. Chromosomes are consist of DNA and

A.None of them

B.Protein

C.Brain

D.Genes

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

A.None of them

B.Density

C.Volume

D.Pressure

11. Balance is an instrument used for measurement of

A.Time

B.Mass

C.Force

D.None of them

12. The unit of inheritable charactrics is

A.Genes

B.Brain

C.DNA

D.None of them

13. What produces insulin to human body

A.None of them

B.Stomach

C.Pancreas

D.Liver

14. In any chemical reaction ;

A.None of them

B.Matter can be destroyed

C.Matter can created

D.Matter can neither be created nor be destroyed

15. The number of chromosomes in human sex cell is

A.None of them

B.23

C.43

D.32

16. The shape of chromosomes is like

A.None of them

B.Only Y

C.Only X

D.X or Y

17. Burning is an example of

A.Atomic reaction

B.Chemical reaction

C.Heat reaction

D.None of them

18. CO2 is obtained by heating

A.Atom

B.None of them

C.Calcium carbonate

D.Neutron

19. Acid turns litmus paper

A.Blue

B.Red

C.Both of them

D.None of them

20. The central nervous system consists of

A.None of them

B.both of them

C.Sensory neurons

D.Motor Neurons

21. What is the functional unit of kidney

A.Unrainy Bladder

B.Nephron

C.None of them

D.Ureter

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

A.None of them

B.Involuntary actions

C.Reflex action

D.Voluntary actions

23. The international system of units was introduced in

A.1960

B.1898

C.None of them

D.1964

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

A.Ozone

B.None of them

C.Sky

D.Crust

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

A.5

B.1

C.7

D.None of them

26. Which of the following is sensory organ

A.Heart

B.None of them

C.Liver

D.Eye

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

A.Two

B.Six

C.Three

D.None of them

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

A.None of them

B.One hour

C.One day

D.One second

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

A.Exothermic reaction

B.None of them

C.Heat reaction

D.Chemical reaction

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

A.Sulpher

B.Acids

C.Alkalis

D.None of them

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