💻JAMB CBT PRACTICE (CHEMISTRY)

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💻 JAMB CBT PRACTICE (CHEMISTRY)

JAMB CBT PRACTICE/MOCK (Chemistry)

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1)

What happens when alkanoic acids react with alcohols in the presence of an acid catalyst?

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2) Which noble gas is radioactive and is produced as a decay product of uranium and thorium?

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3) Stainless steel is an alloy made up of

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4) Which of the following is a unique property of water compared to other liquids?

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5)

Which element is placed at the top of the electrochemical

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6) When an acidic solution is diluted, what happens to its pH?

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7) What is the molar mass of water (H2O)?

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8) What is the atomic number of aluminium?

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9) What happens to the value of the equilibrium constant (Kc) for a reaction if the reaction is reversed?

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10) A blue litmus paper turns red when dipped into a solution. What does this indicate about the solution?

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11) At 2.0 atm pressure, the volume of a gas is 4.0 L. If the pressure is reduced to 1.0 atm while keeping the temperature constant, what will be the new volume of the gas?

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12)

What is the trend for ionization energy across a period in the periodic table?

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13)

Which of the following factors does NOT affect the rate of a chemical reaction?

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14) What is the state of matter in which particles are widely spaced and move freely with high kinetic energy?

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15) What is the name of the process by which ammonia is produced on an industrial scale?

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16) What is the common name for ethanoic acid?

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17) If gas A has a molar mass of 32 g/mol and gas B has a molar mass of 64 g/mol, what is the ratio of their diffusion rates?

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18) When anhydrous cobalt chloride paper is exposed to water, what color change is observed?

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19) When a substance is oxidized, it

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20) Which of the following is a primary constituent of crude oil?

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21) What is the mass (in grams) of 500 mL of ethanol? (density of ethanol = 0.789 g/mL)

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22) Which of the following substances is NOT hygroscopic?

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23)

Which group does calcium belong to in the periodic table?

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24) Which organic compound is responsible for the characteristic aroma of fruits?

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25) What is the main environmental concern associated with sulfur dioxide emissions?

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26) Which separation technique is used to separate different pigments in a mixture based on their affinity for a stationary phase and a mobile phase?

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27) Which of the following reactions would be expected to have the highest entropy change?

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28) Sodium reacts vigorously with water to produce

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29) What is the mass percentage of carbon (C) in methane (CH4)? (The molar mass of carbon is approximately 12 g/mol.)

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30)

What type of reaction is involved in the formation of alkanols from alkenes?

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