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 7828

Q:

The Trans-Siberian Railway(8960 km) connects ____ in the west to ____ in the East.

A) Moscow, Tashkent	B) St. Petersburg, Omsk
C) Moscow, Irkutsk	D) St. Petersburg, Vladivostok

Answer & Explanation Answer: D) St. Petersburg, Vladivostok

Explanation:

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Filed Under: General Awareness

30 7826

Q:

Which district in Andra Pradesh won the MGNREGA annual award for effective implementation of the Mahatma Gandhi National Rural Employment Guarantee Act ?

A) Vizianagaram	B) Vizag
C) Guntur	D) Srikakulam

Answer & Explanation Answer: A) Vizianagaram

Explanation:

The Ministry of Rural Development has selected Vizianagaram as one among the 17 districts across the nation for the MGNREGA annual award for effective implementation of the Mahatma Gandhi National Rural Employment Guarantee Act during 2015-16. The award would be presented at the Mahatma Gandhi NREGA Sammelan to the district programme coordinator and District Collector on June 19, 2017 in New Delhi.

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Filed Under: Honours and Awards
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8 7825

Q:

Which Indian Community celebrates the Khordad sal

A) Sikh	B) Jain
C) Hindu	D) Parsi

Answer & Explanation Answer: D) Parsi

Explanation:

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Filed Under: Indian Culture

124 7819

Q:

The Satpura range situated between two west flowing rivers. They are

A) Narmada and Luni	B) Narmada and Tapi
C) Tapi and Mahi	D) Mahi and Luni

Answer & Explanation Answer: B) Narmada and Tapi

Explanation:

Aravalli seperates the valleys of Luni and Mahi while Vindhyas seperate the valleys of Mahi and Narmada

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Filed Under: Indian Geography

13 7812

Q:

Who is known as Punjab Kesari?

A) Bhagat Singh	B) Dada Saheb Phalke
C) Lala Lajpat Rai	D) Bal Gangadhar Tilak

Answer & Explanation Answer: C) Lala Lajpat Rai

Explanation:

Lala Lajpat Rai is known as Punjab Kesari.

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8 7812

Q:

An example of Full Duplex communication channel.

A) Radio Broadcasting	B) Television Broadcasting
C) Walkie-Talkie	D) Telephone conversation

Answer & Explanation Answer: D) Telephone conversation

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

61 7810

Q:

Which one of the following is the longest National Highway in India?

A) NH2	B) NH5
C) NH7	D) NH8

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