Everyday Science MCQs

5120 MCQs  (Page 280 of 512)

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Formula of Chile saltpetre is__________________?
A. Nano3
B. Caco3
C. Ba (no3)2
D. Nh4cl
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The oxides of beryllium BeO is_______________?
A. Acidic
B. Basic
C. Amphoteric
D. Neutral
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Li is different from its family members due to____________________?
A. Small size
B. High charge density
C. Less electropositivity
D. All of the above
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Carbonates of lithium are not stable like that of sodium due to________________?
A. Low electronegativity
B. Low electropositivity
C. Low charge density
D. Not known yet
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Which one of the following is not an alkali metal ?
A. Francium
B. Caesium
C. Rubidium
D. Radium
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The element cesium bears resemblance with________________?
A. Ca
B. Cr
C. Both of the above
D. None of the above
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Downs cell is used to prepare_________________?
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
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Ammonia may be prepared by heating ammonium chloride with_______________?
A. Water
B. Nacl
C. Aqueous sodium hydroxide
D. H2so4
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Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?
A. 60%
B. 50%
C. 52%
D. 8%
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Aldehyde and ketone have same general formula for homologous series_________________?
A. Cnh2no2n
B. Cnh2n
C. Cnh2no
D. Cnh2non+1
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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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