Questions

Q:

Name the two main types of Fermentation?

Answer

Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.


 


The two most common types of fermentation are


(1) alcoholic fermentation (and) 


(2) lactic acid fermentation.


 


(1) Alcoholic fermentation : the type of fermentation in which ethyl alcohol is the main end product .This is very common in yeast (unicellular fungus) and also seen in some bacteria. Yeast cells release enzymes called zymase complex which bring about the fermentation. The reactions are similar to anaerobic respiration.


 


(2) Lactic acid fermentation : The type of fermentation in which lactic acid is the end product.


It is carried out by some bacteria (e.g. lactic acid bacteria), and also by animals (muscle glycolysis in animals, under oxygen deficiency, results in the formation of lactic acid this is whay we experience in muscle cramps, or "Charley horse").

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Q:

Which type of bond is found in sodium bromide?

A) Ionic B) Covalent
C) Polar covalent D) None of the above
 
Answer & Explanation Answer: A) Ionic

Explanation:
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Q:

The PCl5 molecule has trigonal bipyramidal structure. Therefore,the hybridization of p orbitals should be

A) sp2 B) sp3
C) dsp2 D) dsp3
 
Answer & Explanation Answer: D) dsp3

Explanation:

The P atom needs five orbitals to form the five P-Cl bonds. It has a 3s and three 3p orbitals, so it must use one of its 3d orbitals to form the fifth bond. These orbitals are hybridized to form five sp3d orbitals that just happen to point in the right directions to form a trigonal bipyramid.

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Q:

On 26thNovember, 1949, which of the following provisions of the Constitution of India came into effect?

1.Citizenship

2.Elections

3.Provisional Parliament

4.Fundamental Rights

 

Select the correct answer using the code given below.

A) 2, 3 and 4 B) 1, 2 and 3
C) 1 and 3 only D) 1 and 2 only
 
Answer & Explanation Answer: B) 1, 2 and 3

Explanation:

Some provisions of the Constitution pertaining to citizenship, elections, provisional parliament, temporary and transitional provisions, and short title contained in Articles 5, 6, 7, 8, 9, 60, 324, 366, 367, 379, 380, 388, 391, 392 and 393 came into force on November 26, 1949 itself

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Q:

Which planet is known as the Morning Star or the Evening Star?

A) Jupiter B) Venus
C) Mercury D) Saturn
 
Answer & Explanation Answer: B) Venus

Explanation:

Venus planet is known as the Morning Star or the Evening Star.

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Q:

Which nation plans to build the first city on Mars by 2117 ?

A) India B) United Arab Emirates
C) China D) Russia
 
Answer & Explanation Answer: B) United Arab Emirates

Explanation:

The President and Vice-President of United Arab Emirates Sheik Mohamed bin Zayed Al Nahyan and Shaik Mohammed bin Rashid Al Maktoum announced in Febraury 2017 that they are planning to build the first inhabitable human settlement on Mars by 2117.

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Q:

Who appointed as new president of the Film & TV Institute of India (FTII) Society?

A) Brijendra Pal Singh B) Manohar Raje
C) Naini Singh D) None of the above
 
Answer & Explanation Answer: A) Brijendra Pal Singh

Explanation:
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Q:

"Words in the Garden" festival on Gandhian philosophy is scheduled to be held in which city?

A) Hyderabad B) Pune
C) Kolkata D) New Delhi
 
Answer & Explanation Answer: D) New Delhi

Explanation:
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