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MODERN PUBLICATION-SAMPLE PAPER 2013-EXERCISE
- The enthalpies of all elements in their standard state are :
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- The solution of a colourless salt in water has a pH value of = 9. The ...
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- Uranium (mass number 238 and atomic number 92) emits an alpha particle...
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- H2S is passed through acidified solution of CuSO4 and black ppt is for...
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- When a solution of formaldehyde and KOH is heated , it will give :
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- Alkaline hydrolysis of an ester is called
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- Which of the following chemicals liberates bromine from a solution of ...
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- In the electrophilic substitution of the compound shown below more tha...
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- Write the equation for free energy change of a reversible gaseous reac...
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- What is the relation between Kp and Kc for the following reaction ? NH...
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- The purest form of commercial iron is :
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- Give the name of monomers used in buna-S rubber preparation.
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- Name the main product obtained by the carbylamine reaction of CH(3)-CH...
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- Fill in the blanks : An equimolar mixture of NH4 Cl and NH4 OH is a ……...
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- The cations on reaching "………." gain electrons and from neutral atoms ,...
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- R-CH(2)-CN on reduction with H(2)//Ni forms….
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- Fill in the blanks : Benzene reacts with ozone to form a triozonide wh...
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- Phenol is acidic becauseis more stable than
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- What is endothermic reaction. Give example.
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- State the Law of mass action and explain any two significance of equil...
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