Which gas produces a pink coloured light in a discharge tube?
A. Mercury B. Argon C. Air D. Neon Correct Answer: Option C – Air
Calculate the mass of the copper deposited during electrolysis when a current of 4A passes through a copper salt for 2 hours. [Ece of Copper z=3.3×10^7kgC−¹]
A. 2.9×10^5kg B. 9.5×10^-7kg C. 9.5×10^-3kg D. 2.9×10^4kg Correct Answer: Option C – 9.5×10^-3kg Explanation Mass = ZIT kg Mass = 3.3 x 10^-7 x 4 x 2 x 60 x 60 kg Mass = 9.5 x...
When an atom undergoes a beta decay; the atomic number of the nucleus?
A. Remains unchanged B. Decreases by one C. Increases by one D. Becomes zero Correct Answer: Option C – Increases by one
The magnitude of the angle of dip at the equator is?
A. 360° B. 0° C. 90° D. 180° Correct Answer: Option B – 0°Products
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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Land Ownership Principles and Transaction Laws in Nigeria
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