UNITED BOOK HOUSE-MODEL QUESTION PAPER 8-EXERCISE
- Determine the wavelength and frequency of the radiation having the lon...
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- Elements A, B and C have atomic numbers (Z - 2). Z and (Z + 1) respect...
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- Elements A, B and C have atomic numbers (Z - 2). Z and (Z + 1) respect...
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- Elements A, B ,C and atomic number (Z-2), Z and (Z+1) respectively. Of...
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- Why the second electron gain enthalpy of oxygen is +vc value?
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- Write the name of the element which is diagonally related to the eleme...
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- Is there any change in hybridisation of B and N atoms as a result of t...
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- The percentage of ionic character of LiH is 76.81% and the bond length...
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- HF2^- ion exists but HBr2^- ion does not explain.
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- (i) Any real gas behaves ideally at very low pressure and high tempera...
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- State Daltons partial pressure laws and derive partial pressure and to...
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- Calculate the bond energy of O-H bond in H(2)O(g) at the standard stat...
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- Calculate the bond energy of O-H bond in H(2)O(g) at the standard stat...
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- The latent heat of fusion of ice at 0^@C is 6025.24 J. mol^-1. Calcula...
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- What will be the change in entropy in an irreversible cyclic process ?
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- What is the oxidation number of Fe atom in K4[Fe(CN)6] molecule?
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- Balance the following Chemical equation by oxidation number method :-C...
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- Balance by ion electron method : Zn + NaNO3 rarr Na2ZnO2 + NH3 + H2O
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- Mention the oxidation number of Cr atom in CrO5 molecule.
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- What do you mean by ortho and para hydrogen ? explain why the chemical...
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