Q:

Sound becomes hazardous noise pollution at decibels?

A) above 120 db	B) above 80 db
C) above 50 db	D) above 30 db

Answer & Explanation Answer: A) above 120 db

Explanation:

Sound intensity is measured in decibels(db). Sound pollution above 120 db becomes more hazardous and have adverse affects on human life.

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Filed Under: Physics
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11 6822

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

Explanation:

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Filed Under: Indian History

8 6818

Q:

5 L from A are V?

Answer

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

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13 6815

Q:

The oxidation number of Cr in $K_{2} {Cr}_{2} O_{7}$ 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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13 6812

Q:

In exo-biology we study about ________

A) External structure of living beings	B) Life present on the earth
C) Life present in the other layer of earth atmosphere	D) Life found in space and on other satellite

Answer & Explanation Answer: D) Life found in space and on other satellite

Explanation:

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Filed Under: Biology

14 6812

Q:

Select the synonym of

repentance

A) intransigent	B) obdurate
C) resolute	D) remorse

Answer & Explanation Answer: D) remorse

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 6811

Q:

Select the antonym of

appalling

A) reassuring	B) ghastly
C) dire	D) mean

Answer & Explanation Answer: A) reassuring

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 6807

Q:

Which of following sectors does NOT come under tertiary sector?

A) Electricity	B) Business Services
C) Transport	D) Trade

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