![Calculate the percentage composition of oxygen in calcium trioxocarbonate(IV) [Ca=40, C=12, O=16]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
by Sunday | Sep 14 | Chemistry JAMB
A. 16 B. 48 C. 40 D. 12 Correct Answer: Option B – 48
by Sunday | Sep 14 | Chemistry JAMB
A. greater than their atomic radii B. unaffected by the charge on the ion C. the same as their atomic radii D. less than their atomic radii Correct Answer: Option D – less than their atomic radii Explanation In a neutral atom, the atomic and ionic radius is the...
by Sunday | Sep 14 | Chemistry JAMB
A. decreasing B. increasing C. constant D. neutral Correct Answer: Option C – decreasing Explanation In electro-valency, the oxidation number of the participating metal remains constant
by Sunday | Sep 14 | Chemistry JAMB
A. aniline B. xylene C. phenol D. toluene Correct Answer: Option D – toluene Explanation Toluene is used in making explosives. Phenol is used as a disinfectant and in the production of plastics. Aniline is used in the production of dyes and...
by Sunday | Sep 14 | Chemistry JAMB
A. the litmus turns blue but no gas is evolved B. the litmus turns blue and oxygen is evolved C. the litmus turns blue and hydrogen is evolved D. the litmus turns red and oxygen is evolved Correct Answer: Option D – the litmus turns red and oxygen is evolved...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.