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UNITED BOOK HOUSE-Question Papers 2018-EXAMPLE
- Arrange the following elements in the increasing order of their first ...
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- Arrange the following elements in the decreasing order of their electr...
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- What is meant by an isolated system in thermodynamics?
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- Write the SI unit of entropy.
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- What reagent can be used for the following conversation ? HC = CH rarr...
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- How many neutrons are present in 5 xx 10^-1 moles of ^146C?
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- Determine the mass percentage composition of water (H=1. o=16).
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- Mention Heiscenberg's uncertainly principle. Calculate the uncertainty...
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- Explain why CCl4 is not hydrolysed while SiCl4 is hydroglysed
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- Why is the aqueos solution of borax alkaline?
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- Which reagent is called anmelectrophile in organic reation? write with...
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- Write the IUPAC names of the compounds CH2=CHCH2CH2C=CH and CH3CH=CH...
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- Mention two causes of soil pollution .
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- How does the increase in the amount of CO2 in the atmosphere lead to g...
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- Write with an example the condition for two atoms tom be considered as...
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- "26Fe^(3+) is more stable than Fe^(2+). Explain why? Which is more par...
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- What are the quantum numbers by which an electron in an atom can be de...
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- What is the maximum number of quantum number that may be the same for ...
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- The outermost electrons configuration of the atom of an elements is 3s...
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- Why is the electron gain enthalpy of oxygen is less than that of sulph...
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