Calcium carbide is prepared by heating lime with coke at
Correct answer: C. 2700⁰C
- A. 2500⁰C
- B. 2600⁰C
- C. 2700⁰C
- D. 2800⁰C
Explanation
Calcium carbide (CaC2) is prepared by heating a mixture of lime (calcium oxide, CaO) and coke (carbon, C) in an electric furnace at temperatures around 2700°C. The reaction involved is:CaO(s) + 3C(s) → CaC2(s) + CO(g)
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More s-Block and p-Block Elements questions
Which element is produced at the cathode during the electrolysis of brine in Nelson's cell?
The ore CaSO4.H2O has the general name
Nitrates of which decomposition?pair of elementsgive differentproducts on thermal?
Crystals of Na2CO2.H2Owhen exposed to
First lonization potential of alkaline earth metal is greater than alkali metals because
Which one of the following pairs shows diagonal relationship in the periodic table?