Chemistry Fill in the blanks Set 32

Chemistry Fill in the blanks Set 32

1. The first three periods containing 2, 8 and 8 elements respectively are called short periods
 
2. The valency of representative elements is given by the number of electrons in the outermost orbital and/or equal to eight Minus the number of outermost electrons

3. The Weiss indices of a plane are 1/2, 1/2, 1/2. Its miller indices will Be 2, 2, 2 and the plane is designated as (222) plane.
 
4. A plane is parallel to x & z axes and makes unit intercepts along y-axis. Its Weiss indices are ∞, 1, ∞. Its Miller indices are 0, 1, 0. The plane is designated as (010) plane.

5. Decomposition of aqueous NH4NO2 proceeds by first order reaction.
 
6. Fractional orders are found in polymerization reaction.
 
7. In a zero order reaction rate does not depend on the reactant concentration.

8. Hoffman's rule is applicable to elimination of alkene with more than two β hydrogen atom
 
9. Chloropicrin is prepared by adding nitric acid to CHCl3