Questions

Q:

Of the following elements, which one has the same oxidation  state in all of its compounds?

A) Hydrogen B) Fluroine
C) Carbon D) oxygen
 
Answer & Explanation Answer: B) Fluroine

Explanation:
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Filed Under: Chemistry

15 7571
Q:

A device used for the measurement of radioactivity is

A) mass spectrometer B) cyclotron
C) nuclear reactor D) G.M.counter
 
Answer & Explanation Answer: D) G.M.counter

Explanation:
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Filed Under: Chemistry

13 7568
Q:

The magnetic moment (spin only) of  [NiCl4]2-is

A) 1.41 BM B) 1.82 BM
C) 5.46 BM D) 2.82 BM
 
Answer & Explanation Answer: D) 2.82 BM

Explanation:

Hybridisation of Ni is e-  

Unpaired 3d8in  is 2 

So Ω = n(n+2)BM=2x4 = 8 = 2.82BM

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Filed Under: Chemistry
Exam Prep: AIEEE

10 7566
Q:

Who Invented Worldwide Standard Time Zones ?

A) Charles Richard Drew B) Henry W. Seely
C) Jesse Wilford Reno D) Sir Sandford Fleming
 
Answer & Explanation Answer: D) Sir Sandford Fleming

Explanation:
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Filed Under: Inventions

4 7563
Q:

Who of the following Portuguese is regarded as a 'monster in human disguise' and the one who had no bowels of compassion?

A) Vasco da Gama B) Albuquerque
C) Almeida D) Joao de Castro
 
Answer & Explanation Answer: A) Vasco da Gama

Explanation:
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Filed Under: Indian History

10 7560
Q:

Nuclear bombs were dropped on Hiroshima and Nagasaki during the________.

A) World War I B) Asian War I
C) Gulf War II D) World War II
 
Answer & Explanation Answer: D) World War II

Explanation:
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Filed Under: World History
Exam Prep: Bank Exams

10 7556
Q:

Who has been appointed as the new economic affairs secretary in the Union Finance Ministry  ?

A) N. K. Sinha B) Tapan Ray
C) Subhash C. Garg D) Kirti Singh
 
Answer & Explanation Answer: C) Subhash C. Garg

Explanation:

Subhash C. Garg, a 1983 batch lAS officer of Rajasthan cadre, has been appointed as the new the economic affairs secretary in the Union Finance Ministry. The post fell vacant after Shaktikanta Das retired on May 31, 2017. Currently, Tapan Ray, the corporate affairs secretary, has the additional charge of the economic affairs department. Prior to this appointment, Garg was Executive Director at World Bank for Bangladesh, Bhutan, India and Sri Lanka.

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Filed Under: Indian Politics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

10 7554
Q:

Pollination is best defined as

A) growth of pollen tube in ovule B) visiting flowers by insects
C) germination of pollen grains D) transfer of pollen from anther to stigma
 
Answer & Explanation Answer: D) transfer of pollen from anther to stigma

Explanation:

Pollination is when pollen grains from an anther, the male portion of a flower, are transferred to a female part of the flower, known as the stigma. In order for pollination to be successful, the pollen grains transferred must be from a flower of the same species.

 

After the pollen grains land on the stigma, they create a pollen tube through the length of the style or stalk connecting the stigma and ovary. Once the pollen tube is complete, the pollen grain will send sperm cells from the grain down to the ovary. When the sperm cells reach the ovary and the egg cells, fertilization will occur, which will result in the formation of the seed. The seed will then be released from the parent plant and will be able to grow into a plant and continue the reproductive cycle using the method of pollination.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

14 7551