Questions

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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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Increased wind speed is accompanied by a reduced air _____________.

A) humidity B) pressure
C) density D) aridity
 
Answer & Explanation Answer: B) pressure

Explanation:
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Filed Under: Physics

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Q:

Which must be true for metamorphism to occur?

A) The grain size must become smaller B) The process must take place underwater
C) The parent rock must be in solid form D) The parent rock must be igneous
 
Answer & Explanation Answer: C) The parent rock must be in solid form

Explanation:

Metamorphism is the method of changing the structure of a rock by using heat and temperature.

Hence, for this to happen the parent rock must be in solid form only. Therefore, option C) is true.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

When was the first time declared National Sports Day?

Answer

August 29, 1995 was for the first time declared National Sports Day, it being the 90th birthday of hockey wizard Dhyan Chand

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Q:

What molecule carries genetic information?

A) RNA B) DNA
C) Proteins D) Nucleotides
 
Answer & Explanation Answer: B) DNA

Explanation:

The nucleus of a cell contains chromosomes, which carry genetic information in a long molecule called DNA.

Genes are regions of DNA that carry the code to control a particular cell activity or the production of a particular protein.

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Filed Under: Biology
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Q:

Fiords abound the coast of

A) Sweden B) France
C) Norway D) German
 
Answer & Explanation Answer: C) Norway

Explanation:

Fiords are along narrow inlets into the sea-coast with steep sides. It usually occurs along the coast of a mountainous region.It has been formed by glacial action.

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Filed Under: World Geography

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Q:

What separates Europe from Asia?

A) Caspian mountains B) Ural mountains
C) Himalayan mountains D) Carpathian mountains
 
Answer & Explanation Answer: B) Ural mountains

Explanation:

what_separates_europe_from_asia1555495995.jpg image

Europe from Asia are separated by Ural mountains.

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Filed Under: World Geography
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Q:

Where is the Headquarters of WTO

A) Vienna B) Paris
C) Berne D) Geneva
 
Answer & Explanation Answer: D) Geneva

Explanation:
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Filed Under: World Organisations

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