Inorganic Chemistry , Groups

Q: Deca hydrated crystals of borax are obtained above

(a) :  Room temperature
(b) :  0° C
(c) :  28° C
(d) :  62° C
(e) :  None of the Above
Answer:  62° C
Explanation:  

Q: Which metal or its alloys are not useful for marine use?

(a) :  Li
(b) :  Cu
(c) :  Co
(d) :  Al
(e) :  None of the Above
Answer:  Al
Explanation:  

Q: Sodium silicate is

(a) :  soluble in water
(b) :  alkaline solution
(c) :  filler for soap
(d) :  All above
(e) :  None of the Above
Answer:  All above
Explanation:  

Q: Pb has inert pair of electrons:

(a) :  One
(b) :  two
(c) :  three
(d) :  four
(e) :  None of the Above
Answer:  two
Explanation:  

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