Hydrogen being a highly inflammable gas and oxygen being a supporter of combustion, yet water which is a compound made up of hydrogen and oxygen is used to extinguish fire. Why?
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Who was Erasmus ? Was he a supporter or opposer of the Roman Catholic Church
Desiderius Erasmus is considered one of the greatest minds in history; he was a humanist scholar, a theologian, a writer, a teacher, and, as he put it, "a citizen of...
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Even though a very few cells in a C4 plant carry out the biosynthetic – Calvin pathway, yet they are highly productive. Can you discuss why?
The productivity of a plant is measured by the rate at which it photosynthesises. The amount of carbon dioxide present in a plant is directly proportional to the rate of...
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The two forms of oxygen found in the atmosphere are (a) water and ozone (b) water and oxygen (c) ozone and oxygen (d) water and carbon-dioxide
(c) ozone and oxygen
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An organic compound contains 69percent carbon and 4.8percent hydrogen, the remainder being oxygen.
Percentage of carbon in organic compound = 69 % That is, 100 g of organic compound contains 69 g of carbon. 0.2 g of organic compound will contain =(69X0.2)100=0.138G OF c Molecular mass...
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Hydrogen and oxygen combine in the ratio of 1 : 8 by mass to form water. What mass of oxygen
It is given that the ratio of hydrogen and oxygen by mass to form water is 1:8. Then, the mass of oxygen gas required to react completely with 1g of...
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Explain why inspite of nearly the same electronegativity, oxygen forms hydrogen bonding while chlorine does not.
Both chlorine and oxygen have almost the same electronegativity values, but chlorine rarely forms hydrogen bonding. This is because in comparison to chlorine, oxygen has a smaller size and as...
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Can a double displacement reaction take place when the products are highly soluble or highly ionised?
No, double displacement reaction takes place when there is a formation of a slightly soluble salt.
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Now take the same situation but ask one student who is a supporter of the Fiesta Club to perform all the functions listed above.
If only one person performed all of the functions of the criminal justice system then nobody will get justice. A single individual can have a bias towards only one party....
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On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and brown gas (X) is formed.
(a) 2Cu(NO3)2 → 2CuO+ 4NO2+O2 (b) The brown gas 'X' has to be nitrogen dioxide. (c) This type of reaction falls under the category of Decomposition reactions. (d) The pH of the aqueous...
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In a hydrogenoxygen fuel cell, combustion of hydrogen occurs to (a) generate heat
(b) : Direct conversion of chemical energy to electric energy can be made considerably more efficient (i.e. upto 75%) than the 40% maximum now obtainable through burning of fuel and...
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