Consider the following statements in respect of oxides of sulphur.

(1) In gas phase SO2 molecule is V-shape.

(2) In gas phase SO3 molecule is planar.

(3) ySO3 is cyclic trimer.

Which of the above statements are correct ?

(a) 1 and 2 only                             (b) 2 and 3 only

(c) 1 and 3 only                              (d) 1, 2 and 3

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Gas that can not be collected over water is :

(a) N2                                    (b) O2

(c) SO2                                  (d) PH3

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One gas bleaches the colour of flowers by reduction, while the other oxidation, the two gases respectively are :

(a) CO and Cl2                             (b) H2S and Br2

(c) NH3 and SO3                           (d) SO2 and Cl2

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Which of the following halides cannot be hydrolysed at room temperature?

  (I) TeF6                    (II) SF6                    (III) NCl3                          (IV) NF3

(a) III and IV                               (b) I, II and III

(c) I, II and IV                              (d) II and IV

 

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Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false.

(I) Numbers of SS bonds in H2SnO6 are (n+1)(II) When F2 reacts with water gives HF, O2 and O3(III) LiNO3 and BaCl2 compounds are used in fire works (IV) Be and Mg are ionic and polymeric(a)FTTF                (b) FTTT              (c) TFTT                 (d) TTFF

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Which of the following parent oxy acid does not have its hypo acid?

(a) H2SO2                  (b) HNO2                       (c) H3PO3                     (d) HClO3

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group 16,preparation and properties
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Consider the following reactions :

(i) PCl3+3H2OH3PO3+3HCl             (ii) SF4+3H2OH2SO3+4HF(iii) BCl3+3H2OH3BO3+3HCl            (iv) XeF6+3H2OXeO3+6HF

Then according to given information the incorrect statement is :

(a) During the (i) reaction the hybridisation of 15th group element does not 

      change

(b) During the (ii) reaction the hybridisation of 16th group element does not 

      changed

(c) During the (iii) reaction the hybridisation of 13th group element does not 

      change

(d) During the (iv) reaction the hybridisation of 18th group element does not 

      change

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group 15 ,preparation and properties
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Consider the oxy acids HCIOn series, here value of n is 1 to 4. Then incorrect statement regarding these oxy acids is :

(a) Acidic character of oxy acids increases with increasing value of n.

(b) oxidising power of oxy acids increases with decreasing value of n.

(c) Thermal stability of oxy acids decreases with increasing value of n.

(d) 'CO' bond order decreases with decreasing value of n  

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group 17 ,preparation and properties
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The correct statement regarding CIOn molecular ion is :

(a) On decreasing value of 'n', 'ClO' bond order increases 

(b) On the increasing value of 'n', 'ClO' bond length increases

(c) On the increasing value of n, oxidation number of central atom increases 

(d) On the increasing value of  n, hybrid orbitals on the central atom increase

 

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In, Cl2O6(l)+HF  P+Q

If H+ of acid HF attaches with Q then correct option for hybrization of Cl-atom

and OCIO in the P and Q ions :

(a) P:sp2;>120°

(b) Q:sp3; 109°28'

(c) P:sp3;<109°28'

(d) Q:sp3;>109°28'

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