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Extraction of Aluminium

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Question

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Which of the following is not meaningful?
(a) CI
(b) CII
(c) IC
(d) XC

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Solution

Option c is correct.

I can be subtracted from V and X only. Thus, IC is wrong.

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Similar questions

Q. Mark against the correct answer
Which of the following is not meaningful?
(a) VX
(b) XV
(c) XXV
(d) XXXV

Q. Mark against the correct answer
Which of the following is not meaningful?
(a) XIV
(b) XVV
(c) XIII
(d) XXII

Q. Mark (✓) against the correct answer
Which of the following numbers is not a perfect square?
(a) 529
(b) 961
(c) 1024
(d) 1222

Which of the following is a reducible fraction?

$(a) \frac{105}{112}$

$(b) \frac{104}{121}$

$(c) \frac{77}{72}$

$(d) \frac{46}{63}$

Q. Mark (✓) against the correct answer
Which of the following is a vulgar fraction?

(a)

\frac{7}{10}

\frac{19}{100}

3 \frac{3}{10}

\frac{5}{8}

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