The substance X is an oxide of: (a) copper (b) carbon (c) calcium (d) none of the above

The substance X is an oxide of:
(a) copper (b) carbon
(c) calcium (d) none of the above
by

1 Answer

Answer :

(c) calcium
by

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The lime which contains mainly calcium oxide and slacks with water, is (A) Fat lime (B) Quick lime (C) Hydraulic lime (D) Poor lime

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The lime which contains high percentage of calcium oxide, is generally called (A) Fat lime (B) Rich lime (C) White lime (D) None of these

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Quick lime is (A) Calcium carbonate (B) Calcium oxide (C) Calcium hydroxide (D) None of the above

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A 10 years-old boy presents with a non-vital, non-mobile tooth. Treatment is: A. Pulpectomy with calcium hydroxide B. Pulpectomy with Zinc oxide eugenol C. Pulpotomy with formocresol D. No treatment is required if tooth is asymptomatic

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Last Answer : A. Pulpectomy with calcium hydroxide

Quicklime is a) Calcium carbonate b) Calcium bicarbonate c) Calcium oxide* d) Calcium hydroxide

Description : Quicklime is a) Calcium carbonate b) Calcium bicarbonate c) Calcium oxide* d) Calcium hydroxide

Last Answer : c) Calcium oxide*

The lime which contains mainly calcium oxide and slacks with water, is known as a) Fat lime b) Quicklime* c) Hydraulic lime d) Poor line

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Last Answer : b) Quicklime*

How is Calcium oxide (quick lime), CaOPrepared?

Description : How is Calcium oxide (quick lime), CaOPrepared?

Last Answer : It is prepared on a commercial scale by heating limestone(CaCO3) in a rotary kiln at 1070-1270K.   The carbon dioxide is removed as soon as it is produced to enable the reaction to proceed to completion. 

What is the common name for calcium oxide, CaO?

Description : What is the common name for calcium oxide, CaO?

Last Answer : ANSWER: QUICKLIME (LIME)