Questions

Q:

The unit of energy in MKS system is

A) Joule B) Ohm
C) Erg D) Volt
 
Answer & Explanation Answer: A) Joule

Explanation:

The unit of energy in MKS system is Joule.

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Q:

Where does glycolysis take place?

A) Mitichondria B) Cytoplasm
C) Mitochondrial outer membrane D) None of above
 
Answer & Explanation Answer: B) Cytoplasm

Explanation:

"Glycolysis" means the splitting of glucose. The first step of the process occurs in the cytoplasm of the cell and yields a small amount of energy (measured in units of ATP) and two molecules of pyruvate.

The other steps occur in the mitochondria. It is an ongoing process as your cells have a constant need for energy.

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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:

Which one of the following statements about the Elephanta Island is correct?

A) It was given its name by the British after a large elephant structure located there. B) It contains one large cave.
C) It is well-known for a spectacular carving of Vishnu described in the Vishnudharmottara Purana. D) It is associated with the Pashupata sect.
 
Answer & Explanation Answer: B) It contains one large cave.

Explanation:

The Elephanta Caves are located in Western India on Elephanta Island (otherwise known as the Island of Gharapuri), which features two hillocks separated by a narrow valley. The name Ardhanarishvara (famous statue of Elephanta) means the Lord Who is half woman, Ardhanarishvara is also known by other names. The Gupta-era writer Pushpadanta in his Mahimnastava refers to form as dehardhaghatana. Utpala, commenting on the Brihat Samhita, calls this form Ardha-gaurishvara, the Vishnudharmottara Purana simply calls this form Gaurishvara.Buddhist caves in Elephants and the caves built by the followers of Pashupata cult (a Shaivite Hinduschool).The island and its resident caves received the name 'Elephanta' from Portuguese invaders after the discovery of a black stone sculpture of an elephant on the island.

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Q:

What is not a reason christian missionaries went to Asia?

Answer

To obtain exotic spices or to find trade items are not the reasons for christian missionaries went to Asia.

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Q:

The impression of an image persists on the retina for about _________ of a second.

A) 1/10th B) 1/8th
C) 1/16th D) 1/5th
 
Answer & Explanation Answer: C) 1/16th

Explanation:
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Q:

Which equation is an example of a synthesis reaction?

A) 2H2 + O2 → 2H2O B) Na + Cl → NaCl
C) HA + BOH → H2O + BA D) NaCl + AgNO3 → NaNO3 + AgCl
 
Answer & Explanation Answer: B) Na + Cl → NaCl

Explanation:

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

 

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

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Q:

Which chemical is not found in DNA nucleotides?

A) Thymine B) Uracil
C) Adenine D) All of the above
 
Answer & Explanation Answer: B) Uracil

Explanation:

A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine. RNA contains uracil, instead of thymine. 

 

A nucleotide within a chain makes up the genetic material of all known living things.

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