66. "Which elements are arranged in increasing order of atomic weight, every eighth element has properties similar to the first." This law had been given by

1. 1. Moseley

   
   
   

   2. Dobereiner

   
   
   

   3. Newland

   
   
   

   4. Lother-Mayer

   
   
   

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   NA

   Correct Option: C

   NA

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67. Aluminium is diagonally related to

1. 1. Li

   
   
   

   2. Be

   
   
   

   3. C

   
   
   

   4. B

   
   
   

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   NA

   Correct Option: B

   NA

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68. The first attempt to classify elements was made by

1. 1. Mendeleev

   
   
   

   2. New land

   
   
   

   3. Lother-mayer

   
   
   

   4. Dobereiner

   
   
   

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   NA

   Correct Option: A

   NA

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69. The elements in group zero called

1. 1. Alkali metals

   
   
   

   2. Transition metals

   
   
   

   3. Intert gases

   
   
   

   4. None

   
   
   

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   NA

   Correct Option: C

   NA

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70. Alkali metal are in a group

1. 1. IIA

   
   
   

   2. VII A

   
   
   

   3. I A

   
   
   

   4. III A

   
   
   

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   NA

   Correct Option: C

   NA

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