Bone is made up of
A) calcium phosphate
B) calcium carbonate
C) calcium phosphate & calcium carbonate
D) sodium carbonate
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A sample of calcium carbonate (CaCO3) has the following percentage composition : Ca = 40 %; C = 12 %; O = 48 %.
(C) 1.6 g Law of constant proportional, state that "the individual elements that constitute a chemical compound are always present in a fixed ratio (by mass)". This ratio does not depend on the...
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A sample of calcium carbonate (CaCO3) has the following percentage composition : Ca = 40 %; C = 12 %; O = 48 %.
2 Answers
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Calcium phosphate and Calcium carbonate in bones are secreted by …………….
Correct option is D) Matrix
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The skeleton of Echinoderms is made of A) Calcium carbonate
B) Sodium carbonate
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Calcium carbonate structures from the skeleton of A) Echinodermata
Correct option is B) Mollusca
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Match the following i) Sodium bi-carbonate ii) Sodium Carbonate
B) i – z, ii – x, iii – y
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Which of the following gases puts off the matchstick when calcium carbonate is heated ?
Correct option is C) CO2
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Zveomatic bone is commonly known as ___ bone.
Zveomatic bone is commonly known as Cheek bone.
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State whether the following statements are True or False: 1. Saggital suture joins frontal bone with parietal bone.
1. False. Saggital suture joins two parietal bones. 2. False. In human beings, there are 12 pairs of ribs. 3. True
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Calcium carbonate occurs naturally in which forms?
Calcium carbonate (CaCO3) occur naturally in the form of chalk, limestone and marble.
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