B] Choose the correct answer from the options given below :- [5]
1) A salt normally used in desiccator is
a) An hydrous calcium chloride b) Washing soda
c) Caustic soda d) Epsom salt
2) Which of the following statements about hydrogen is incorrect?
a) It is the lightest gas b) It is a strong oxidizing agent
c) It is not easily liquefied d) It is an inflammable gas
3) According to modern periodic law, the properties of elements are a periodic function of their
a) Atomic volume b) Atomic number
c) Atomic weight d) Mass Number
4) Which of these is a noble gas?
a) Hydrogen b) Nitrogen
c) Helium d) Oxygen
5) Which of the following is not a common characteristics of an electrovalent compound ?
a) High melting point b) Conducts electricity when molten
c) Consists of positively charged ion d) Ionizes when dissolved in water
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HI ARMY HERE IS YOUR ANSWER
THESE ARE ONLY OPTIONS
1 A
2 D
3 C
4 D
5 B
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BYE ARMY
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Answer:
1)An hydrous calcium chloride
2)it is an inflammable gas
3)b)atomic number
4)c)helium
5)c)consist of positively charged ion
Explanation:
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