The first synthetic carbon compound is …….. and it was prepared by …………
A) Acetic acid, Wohler
B) Alcohol, Berzelius
C) Urea, Wohler
D) Dimethyl, Lewis
1 Answers
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Compare the proportion of carbon and hydrogen atoms in ethane, ethene and ethyne. Which compound is most unsaturated with hydrogen?
Ethane C : H = 2 : 6 = 1 : 3 Ethene C : H = 2 : 4 = 1 : 2 Ethyne C : H = 2 : 2 = 1 :...
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Soap and synthetic detergent
Soap Synthetic detergent 1. Soaps can be broadly classified into two types, i.e., toilet soaps (prepared using KOH) and laundry soaps (prepared using NaOH). 1. Synthetic detergents are of three types, i.e., anionic,...
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The bond length between `sp^3` hybridised carbon atom and other carbon atom is minimum in
Correct Option is : (D) Propyne The C-C bond length = 1.54 Å , C=C bond length = 1.34 Å and \(C \equiv C\) bond length = 1.20 Å . Since propyne has a triple bond , therefore...
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(i) Chalk contains calcium, carbon and oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk. (ii) If in a stick of chalk, carbon is 3g,
Correct Answer - (i) 12% (ii) 25g
2 Answers 1 views
If CH3 – CH2 – CH2 – COOH is the IUPAC structure of carbon compound, then the carbon compound is
C) Butanoic acid
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CH3 — CH2 — OH reacts with alkaline KMnO4 and heats to form first the compound A, which futher oxidises to form a compound B.
Correct option is D) Acetic acid
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a. Why is Carbon -14 radioactive while Carbon -12 not? (Atomic number of Carbon: 6) b. Researchers have uncovered the youngest known
(a) Ratio of neutrons to protons is 2.3: 1 which is not the stable ratio of 1:1 (b) Age of fossils can be estimated by C-14 decay. All living organisms have...
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There are 3 isotopes of carbon. Carbon-12, Carbon-13 and Carbon-14. The most abundant carbon isotope is carbon – 12.
Correct option is A) 12.01
2 Answers 1 views
………….. is a synthetic fibre, prepared from coal, water and air.
Correct option is A) nylon
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Carbon found nature as a mixture of C-12 and C-13. The average atomic mass of carbon is 12.011u. What is the percentage abundance of carbon-12 in natu
Correct Answer - `98.9%`
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