Questions

Q:

5 L from A are V?

Answer

5 L from A are V --- 5 Letters from Alphabets are Vowels.


 

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Q:

Generally atomic radius is measured in which unit?

 

A) Fermi B) Millimeter
C) Angstrom D) Micrometer
 
Answer & Explanation Answer: C) Angstrom

Explanation:
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Filed Under: Physics
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Q:

What is the position of metallic ion and non-metallic ion in a chemical formula?

 

A) Metal ion at second position B) Non-metal ion at first position
C) Metal ion at first and non-metal ion at second position D) No option is correct
 
Answer & Explanation Answer: C) Metal ion at first and non-metal ion at second position

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Q:

The Programme of Swadeshi and Boycott against the partition of Bengal was visualised by

A) Surendra Nath Bennerjee B) BC Pal
C) Aurobindo Ghose D) Ras Behari Bosh
 
Answer & Explanation Answer: A) Surendra Nath Bennerjee

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Filed Under: Indian History

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Q:

The best colours for a sun umbrella will be

A) Black on top red on inside B) Red on top white on inside
C) White on top black on inside D) Black on top white on inside
 
Answer & Explanation Answer: C) White on top black on inside

Explanation:

the_best_colours_for_a_sun_umbrella_will_be1554287326.jpg image

The best colours for sun umbrella is black on inside and white on top of the umbrella. As black colour absorbs sun rays it should not be up side.

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12 6823
Q:

The oxidation number of Cr in K2Cr2O7 is

A) +6 B) -5
C) +3 D) -4
 
Answer & Explanation Answer: A) +6

Explanation:

We will rewrite the formula as an equation.

2K + 2Cr + 7O = 0

The zero comes from there being no overall charge on the compound.

Each oxidation number is represented by the element's symbol.

Since this compound is not a peroxide or superoxide, the oxidation value for O is -2

K being in group 1 has a +1 charge and therefore has an oxidation number of K is +1

Now, by putting known values in we have:

2(+1) + 2(Cr) + 7(-2) = 0

2 + 2Cr -14 = 0

2Cr = +12

Cr = +6.

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Filed Under: Chemistry
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Q:

Improve the bracketed part of the sentence.

 

When he arrived at the party, he (had been dressed) in a black suit.

 

A) dressed B) had dressed
C) was dressed D) no improvement
 
Answer & Explanation Answer: C) was dressed

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Q:

Select the synonym of

consensus

 

A) cacophony B)  harmony
C) tumult D) clamour
 
Answer & Explanation Answer: B)  harmony

Explanation:
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