Which of the following elements of the Boron Family is the most abundant?
a) Aluminium
b) Boron
c) Gallium
d) Thallium
1 Answers
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If S and T are two sets such that S has 21 elements, T has 32 elements, and S ∩ T has 11 elements, how many elements does S ∪ T have
It is given that: n(S) = 21, n(T) = 32, n(S ∩ T) = 11 We know that: n (S ∪ T) = n (S) + n (T) – n (S...
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If X and Y are two sets such that X has 40 elements, X ∪Y has 60 elements and X ∩Y has 10 elements, how many elements does Y have
It is given that: n(X) = 40, n(X ∪ Y) = 60, n(X ∩ Y) = 10 We know that: n(X ∪ Y) = n(X) + n(Y) – n(X ∩ Y) ∴ 60 = 40...
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Which of the following RNAs should be most abundant in animal cell ?
The correct answer is (4) Ribosomal RNA (rRNA) is most abundant in animal cell. It constitutes 80% of total RNA of the cell.
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The most abundant inert gas in the atmosphere is (a) He (b) Ne (c) Ar (d) Kr
(c) Ar is the most abundant in atmosphere
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Write the Oxidation state of the following elements: Boron Gallium Indium
a) -3 & +3 b) +3 & +1 c) +3 & +1
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Which of the following does not constitute the Boron Family? a) Barium b) Aluminium
a) Barium does not constitute the Boron Family
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Which of the following elements of the Boron Family is a non-metal? a) Gallium b) Indium
d) Boron of the Boron Family is a non-metal
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Which of the following elements show oxidation state of +3 only? (a)Boron (b)Gallium (c)Indium
(a) Boron elements show oxidation state of +3 only
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In B2H6 :- (a)There is a direct boron-boron bond (b)The boron atoms are linked through hydrogen atoms
(b)The boron atoms are linked through hydrogen atoms
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Which of the following elements resembles boron the most? (a)Aluminium (b)Gallium
(c)Iron elements resembles boron the most.
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