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Chemistry | MP Board | Grade 12 | 2012
Q. Fe, Co, Ni are ___________ substances.
  1. Paramagnetic
  2. Ferromagnetic
  3. Diamagnetic
  4. Anti-ferromagnetic
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Q. Bleaching action of chlorine is permanent while bleaching action of sulphur dioxide is temporary, why?
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Q. What is order of reaction? Write unit of rate constant K for the zero order, first order and second order reaction.
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Q. Correct formula of calomel is ________.
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Q. Dry ice (solid CO2) is a/an:
  1. ionic crystal
  2. covalent crystal
  3. molecular crystal
  4. metallic crystal
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Q. Draw the labelled diagram of vertical retort method used in extraction of zinc and write only equation of chemical reaction in the extraction of zinc from zinc blende?
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Q. How will you obtain the following from Phenol (give equation):
(i) 2, 4, 6 Trinitrophenol, (ii) 2, 4, 6 Tribromophenol, (iii) Benzene, (iv) Ortho and Para-Cresol.
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Q. Match the pairs (choose the correct answer from section 'B' for section 'A'):
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Q. Write the name of reaction:
C6H5NH2+CHCl3+3KOHAlcoholic−−−−−−−−−−SolutionC6H5NC+3KCl+3H2O
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Q. Write one example of monosaccharide carbohydrate.
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Q. Explain the following reactions of chlorobenzene:
(i) Reaction with chlorine in the presence of FeCl3 in dark, (ii) Fitting reaction.
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Q. Number of moles of solute present in 1000 gm of solvent is known as :
  1. Normality
  2. Mole fraction
  3. Molality
  4. Molarity
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Q. General electronic configuration of inner transition element is ________.
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Q. Write the name of reaction:
C6H5N2ClCuCl/HCl−−−−−−−−−C6H5Cl+N2
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Q. Draw labelled diagram of Haber process for the manufacture of ammonia and write chemical equation?
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Q. Write chemical name of one antifertility drug.
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Q. C6H5NO2+6[H]Sn/HCl−−−−−−−−X+2H2O
Write the formula of X.
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Q. What happens when (give equation):
(i) copper sulphate is heated upto 230 temperature?
(ii) copper sulphate react with ammonium hydroxide?
(iii) silver nitrate react with hydrochloric acid?
(iv) mercuric chloride react with potassium iodide?
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Q. Explain Werner's theory of co-ordination compounds?
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Q. Give chemical equations of the following conversions:
(i) Diethyl ether from Ethanol
(ii) Ethanol from Diethyl ether
(iii) Ethyl acetate from Ethanol
(iv) Ethanol from Glucose
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Q. Explain the following reactions of chloroform:
(i) Effect of air and sunlight, (ii) Reimer-Tiemann reaction.
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Q. Fluorine shows only +1, 1 oxidation state while other halogen element shows +3, +5 and +7 oxidation states in addition to +1, 1. Why?
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Q. Draw labelled diagram of Laboratory method of phosphine and give chemical equation?
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Q. Write IUPAC name of the following co-ordinate compounds:
(i) K[Ag(CN)2],
(ii) K4[Fe(CN)6],
(iii) [Ag(NH3)2]Cl,
(iv) [Cr(NH3)6]Cl3
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Q. The correct example of 'Frenkel Defect' is:
  1. AgCl
  2. NaCl
  3. KCl
  4. CsCl
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Q. Number of Na atoms present in the unit cell of NaCl crystal is :
  1. 1
  2. 2
  3. 3
  4. 4
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Q. What is half life period? Derive its derivation.
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Q. ________ is used as a Refrigerant.
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Q. ________ is a radioactive inert gas.
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Q. Arrhenius equation is represented by ________.
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