Chemist Sam.

Do not use Mathematical tables or Calculator 👀

Simplify 81⁰•²⁵ ÷ 32⁰•²

√(y+11) = 5 , find y

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Burning Kerosene gives CO2 + H2O

Na is not stored under water because it Tarnishes.

The electrolyte used in DOWN CELL is Molten NaCl fused with Cacl2

The Law of Definite Proportion is also referred to as the law of Constant Composition.

Hydrogenation of Alkynes gives Alkanes

4/500.

• Which of the following organic compounds can undergo both addition and substitution reactions ?

A. Pentane B. Benzene C. Propane D. Hexane .

3/500

• Ripening of fruits is hastened by using ...

A. Ethanol B. Ethane C. Ethene D. Ethyne

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• Quantum Numbers only describes ELECTRONS and not ATOMS 📚

• The lowest Oxidation State of IRON is ZERO 📚

• The hardest substance known to man is DIAMOND 📚

• GEL is a SOL which contains more solid particle dispersed in liquid than usual 📚

• The most reactive metal known is Francium 📚

🧤 2/500 • Chemistry quiz 🍷
Pure water can be made to boil below 100°C under ?

A. Increased volume
B. Decreased volume
C. Increased external pressure on it
D. Decreased external pressure on it

🧤 1/500 • Chemistry quiz ✌️
A liquid begins to boil when .............. ?

A. Constituent particles acquire energy which makes them slide over one another .
B. Constituent particles acquire energy above the average kinetic energy .
C. Constituent particles acquire energy below the average kinetic energy .
D. Constituent particles acquire a greater kinetic energy .

4ᵏ × 4³ = 4⁵ × 4⁶
Find k.

................... is the reaction between an acid and a base to produce salt and possibly water ?

🧤 Two layers of the skin are ? ................ 📚
A. True skin , sweat duct
B. Hair follicle , pore
C. Oil layer , sweat layer
D. Epidermis , dermis
E. Lateral , vertical layers .

What's the answer ?

........ discovered the neutron ?

7/60 . The series of changes by which a living thing comes into maturity is ?
A. Growth
B. Adolescence
C. Noticeable changes
D. Development
E. Physical changes

6/60. Which of the following causes deforestation ?
A. Refining petroleum
B. Flow of rivers
C. Transportation on the sea
D. Too much birds in the sky
E. Cutting of trees for firewood

5/60.
The formula for Sodium Tetraoxosulphate (v) is .........
A. Na2SO4
B. Na2SO3
C. Na2CO3
D. NaSO3
E. Na2SO6

4/60 . ............. Are the automatic actions carried out by the body .
A. Voluntary actions
B. Passive actions
C. Reflex actions
D. Deliberate actions
E. Impulse actions

3/60. The principal interest of ICT is not to .............. through electronic means .
A. Transmit information
B. Exchange information
C. Process data
D. Increase the rate of development
E. Increase fraudulent activities

2/60. .......................... represents the name of an element .
A. Chemical name
B. Chemical symbols
C. Abbreviation
D. Alphabet
E. Compound

1/60. Which of the following is the basic unit of inheritance ?
A. Blood
B. Genes
C. Chromosomes
D. Nerves
E. Nucleus