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OSWAAL PUBLICATION-Sample Paper 2-Exercise
- What is the cause of acid rain?How is ti harmful to the environment?
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- Give two reason , why the number of elements in first period is only 2...
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- Write the general electronic configuration of f-block elements.
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- What is hydrogen bonding?
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- HF is liquid where as HCI is gas.Give suitable reason.
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- Write the resonance structure of CO(2).
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- Write the lewi's dot structure of lithium molecule.Calculate its bond ...
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- Balance the redox reaction using oxidation number method: FE^(2+)(aq)C...
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- Name the subtance which are responsible for the permanent hardness of ...
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- Write any one method for removing permanent hardness of water,with its...
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- Give one suitable reason for diagonal relatioship of lithium with magn...
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- Name an alkali metal carbonate which is thermally unstable and why?Giv...
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- How would you explain lower atomic radius of Ga as compared to AI?
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- Write any one use of zeolite.
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- Define mole fraction.
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- Define Avogadro constant (N(A)).
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- Determine the empirical formula of an oxide of Iron which has 69.9% Ir...
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- The number of electrons.protons and neutrons in a monoatomic species a...
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- Calculate the wavelength,frequency and wave number of a light wave who...
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- How many sub-shells are there in N-shell?How many orbitals are there i...
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