Four cylinders contain equal number of moles of argon, hydrogen, nitrogen and carbon dioxide at the same temperature. The energy is minimum in
(a) argon
(b) hydrogen
(c) nitrogen
(d) carbon dioxide.
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Why does the percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere?
The percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere because cycling of these gases maintains consistency.
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Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight
(a) Mass of sodium atoms carried by Krish = (5 × 23) g = 115 g While mass of carbon atom carried by Raunak = (5 ×12) g = 60g...
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Carbon exists in the atmosphere in the form of (A) carbon monoxide only (B) carbon monoxide in traces and carbon dioxide
(C) carbon dioxide only
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Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, eg. hydrogen.
(B) neon Atomic number of carbon = 6 Electronic configuration of carbon = 2, 4 When carbon forms four covalent bonds by sharing its valence electrons with four univalent atoms (eg. Hydrogen), it...
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In three moles of ethane (C2H6) calculate the following: Number of moles of carbon
1 mole of C2H6 contain = 2 moles of carbon 3 moles of C2H6 contain = 6 moles of carbon
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Calculate the weight of carbon monoxide having same number of oxygen atoms as are present in 88 g of carbon dioxide.
Molecular mass of CO2 = 12 + 2 x 16 = 44 1mol of CO2 = 44 g 44 g of CO2 contain = 6.022 x 1023 molecules 88 g of CO2 contain...
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Acid rain is caused by the pollution of environment by (a) carbon dioxide and nitrogen (b) carbon monoxide and carbon dioxide
(d) Acid rain is caused by a chemical reaction that begins when compounds of sulphur dioxide and nitrogen oxide react with molecules in the atmosphere to produce acids.
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An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide
Calculation of mass of CO2 produced: Mass of compound =0.20g %C =12 x C 69=12*mass of CO2 formed*100/44*0.2 Mass of CO2 formed =69*44*.2/12*100 = 0.506g Similarly, % H =2* mass of H2O formed*100/18*mass of compoun 4.8=2* mass...
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Carbon burns in oxygen to form carbon dioxide. The properties of carbon dioxide are -
(C) totally different from both carbon and oxygen
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All samples of carbon dioxide contain carbon and oxygen in the mass ratio 3 : 8. This is in agreement with the law of
(B) constant proportions
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