Everyday Science MCQs

5120 MCQs  (Page 266 of 512)

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Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?
A. Ns2p2
B. Ns2p4
C. Ns2p5
D. Ns2p6
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Which is the strongest acid ?
A. Hcio
B. Hcio2
C. Hcio3
D. Hcio4
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Bleaching powder is an example of________________?
A. Normal salt
B. Double salt
C. Mixed salt
D. Complex
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Which of the following oxides of iodine is used for quantitative analysis of CO ?
A. I2o4
B. I4o2
C. I2o5
D. All are equally useful
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Which of the halogen has highest electronegativity ?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
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Which of the following statements is incorrect about halogens ?
A. All are non-metals
B. All the halogens have electronic conviguration ns2p5
C. They have high electron attinity and ionization energy
D. All the halogens react with noble gases to form their halides
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Bleaching powder is not used for bleaching________________?
A. Cotton
B. Costly fabrics
C. Linen
D. Paper pulb
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Which of the following is not use of compounds of Fluorine________________?
A. Sbf3 is used for manufacture of pottery
B. Sodium fluoroacetate is a rat posion
C. Cu f2 is used in ceramic industry
D. None of the above
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Photographic plates are coated with a thin film of _________________?
A. Agno3
B. Agi
C. Agcl
D. Agbr
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Indicate the correct statement__________________?
A. Cl2 is the strongest oxidizing agent
B. I2 is a volatile solid
C. Br2 is more reactive than cl2
D. Cl2 is insoluble in water
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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