RRB GROUP D Chemistry Quiz - 13

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Question 1:

Which one of the following is a metallic mineral ? 

  1. Iron 
  2. Mica 
  3. Gypsum
  4. Bauxite

Question 2:

The maximum number of electrons present in d subshell is

Question 3:

Which of the following elements have the same physical and chemical properties ?

1) B

2) Na

3) Mg

4) Li

Question 4:

Weeds are the unwanted plants that grow along with the cultivated plants. How do they affect the plants ?

Question 5:

Which of the following is natural solid fuel?

Question 6:

The technique of chromatography is used in-

Question 7:

Electric fuse is an alloy of

Question 8:

Which one of the following statements is correct?

Question 9:

Table salt is a product of

Question 10:

Transuranium elements are unstable and decay radioactively into other elements. These are-