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MODERN PUBLICATION-SAMPLE PAPER 2020-EXERCISE
- What is the role of limestone in the extraction of iron from red haema...
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- 2.75 g of Na2 CO3 is present in 200 ml of Na2CO3 solution. Calculate t...
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- What is Rosenmund reduction reaction?
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- Why is electron affinity of chlorine greater than that of fluorine ?
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- What is Tyndal effect ? Explain with diagram.
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- What happens when ethyl alcohol is heated with excess conc. H2 SO4 at ...
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- What happens when SO2gas is passed through lime water first slowly and...
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- If at 25^@C, the standard emf of the cell |Zn(s)| Zn^2+ (1M) || Cu^2(0...
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- What are ionization and linkage isomerism? Give one example of each.
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- Benzoic acid on treatment with Br2 and FeBr3 gives the compound (A), w...
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- The boiling point of benzene is 353.2 K .When 1.8 g of a non - volatil...
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- Discuss the mechanism of SN 2 reaction.
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- What are addition and condensation polymerisation? Give one example of...
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- Write three differences between physical and chemical adsorption.
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- What is lanthanide contraction? Write any two of its consequences.
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- Write a note on denaturation of protein.
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- Give three differences between crystalline and Amorphous solids.
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- Inter halogen compounds are :
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- How can you prepare methyl amine by Hofmann bromamide reaction ? Write...
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- Arrange the following amines in the increasing order of their basicity...
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