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Chemistry Past Questions For JAMB/WAEC/NECO Students v1

Chemistry Past Questions For JAMB/WAEC/NECO Students v1; These Chemistry questions are for students who are sitting for the following examinations:

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  • JAMB
  • Post-UTME / Post-JAMB
  • WAEC
  • NECO
  • WAEC GCE
  • NECO GCE
  • NABTEB
  • NABTEB GCE
 

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#1. The nucleus of an atom consists of

#2. The number of moles of solute present in 1 kg of a solvent is called its

#3. The most electronegative element among the following is

#4. The metal used to recover copper from a solution of copper sulphate is

#5. The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

#6. The metallurgical process in which a metal is obtained in a fused state is called

#7. The molecules of which gas have highest speed?

#8. The oldest rocks in the earth’s crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock’s called

#9. The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is

#10. The main buffer system of the human blood is

#11. The gas present in the stratosphere which filters out some of the sun’s ultraviolet light and provides an effective shield against radiation damage to living things is

#12. The most commonly used bleaching agent is

#13. The nucleus of a hydrogen atom consists of

#14. The heat required to raise the temperature of body by 1 K is called

#15. The nuclear particles which are assumed to hold the nucleons together are

#16. The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

#17. The octane number of zero is assigned to

#18. The metal that is used as a catalyst in the hydrogenation of oils is

#19. The most abundant rare gas in the atmosphere is

#20. The Latin word formica means ant. The name formic acid is derived from this Latin word because

#21. The ore which is found in abundance in India is

#22. The inherited traits of an organism are controlled by

#23. The heat energy produced when the human body metabolises 1 gram of fat is

#24. What are the number of moles of CO2 which contains 16 g of oxygen?

#25. he main use of salt in the diet is to

#26. The monomer of polythene is

#27. The luster of a metal is due to

#28. The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

#29. The most malleable metal is

#30. The oil used in the froth floatation process is

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