Questions

Q:

Name the Indian player who was chosen by the Indian Olympic Association (IOA) as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games.

A) P V Sindhu B) Deepa Karmakar
C) Saina Nehwal D) Sakshi Malik
 
Answer & Explanation Answer: A) P V Sindhu

Explanation:

Indian Olympic Association (IOA) chooses P.V. Sindhu as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games.

The opening ceremony will be held on April 4, 2018.

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6 3028
Q:

What important polymer is located in the nucleus?

A) Ribosomes B) Chromosomes
C) DNA D) Proteins
 
Answer & Explanation Answer: C) DNA

Explanation:

The most important polymer present in the nucleus is DNA- the master molecule. It is a polymer of Nucleotides.

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Filed Under: Chemistry
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2 3028
Q:

Is rusting a physical or chemical change?

Answer

In chemistry rusting is called as oxidation. Oxidation is a chemical process where metal gains oxygen and become oxide. In rusting the Iron ore make a chemical reaction with the oxygen in the presence of water and environmental or atmospheric moisture to produce an Iron oxide. Iron oxide is otherwise called as rust.


The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. 


 


Rusting would only be a physical change if iron molecules remained pure iron throughout the process.

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2 3027
Q:

Heat is associated with

A) K.E of random motion of molecules B) K.E of orderly motion of molecules
C) Total K.E of random and orderly motion of molecules D) None of these
 
Answer & Explanation Answer: A) K.E of random motion of molecules

Explanation:
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3 3027
Q:

Who has been appointed as the first woman Secretary General of the Lok Sabha?

A) Rama Devi B) Sumitra Mahajan
C) Anupama Kare D) Snehlata Shrivastava
 
Answer & Explanation Answer: D) Snehlata Shrivastava

Explanation:

Snehlata Shrivastava, appointed as the first woman Secretary General of the Lok Sabha. The appointment was made by Lok Sabha Speaker Sumitra Mahajan. Ms. Shrivastava will replace Anoop Mishra, who retired on November 30, 2017. 

Ms. Shrivastava, a senior civil servant with 35 years of rich and varied administrative experience is a 1982 batch IAS officer from the Madhya Pradesh cadre.

Rama Devi holds the distinction of the being the first woman secretary general of the Rajya Sabha.

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12 3026
Q:

In a plant cell, DNA may be found in

A) only in the nucleus and mitochondria. B) only in the nucleus and chloroplasts
C) in the nucleus, mitochondria, and chloroplasts. D) only in the nucleus.
 
Answer & Explanation Answer: C) in the nucleus, mitochondria, and chloroplasts.

Explanation:

All of the genetic information in a cell was initially thought to be confined to the DNA in the chromosomes of the cell nucleus.

It is now known that small circular chromosomes, called extranuclear, or cytoplasmic, DNA, are located in two types of organelles found in the cytoplasm of the cell.

These organelles are the mitochondria in animal and plant cells and the chloroplasts in plant cells.

Chloroplast DNA (cpDNA) contains genes that are involved with aspects of photosynthesis and with components of the special protein-synthesizing apparatus that is active within the organelle.

Mitochondrial DNA (mtDNA) contains some of the genes that participate in the conversion of the energy of chemical bonds into the energy currency of the cell—a chemical called adenosine triphosphate (ATP)—as well as genes for mitochondrial protein synthesis.

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6 3025
Q:

Which naxal affected district police has been selected for the International Association of Chiefs of Police (IACP) award this year for its community policing initiative focusing on the rehabilitation of Naxals  ?

A) Bastar Police, Chhattisgarh B) Lucknow Police, UP
C) Patna Police , Bihar D) Jaipur Police, Rajasthan
 
Answer & Explanation Answer: A) Bastar Police, Chhattisgarh

Explanation:
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5 3024
Q:

The wavelength of a wave is the distance between

A) Crest and Trough B) Crest and Crest
C) Trough and Trough D) Both B & C
 
Answer & Explanation Answer: D) Both B & C

Explanation:

Distance between two Consecutive Crests or two Consecutive Troughs is called Wavelength. But the distance between crest and adjacent trough is half the wavelength.

That is the distance between adjacent crest and trough is called Half the wavelength.

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11 3023