General Knowledge Questions

Q:

How does molecular shape affect polarity?

Answer

Polarity :: 


The polarity of a molecule defines its other physical properties such as melting point, boiling point, surface tension, vapor pressure etc... Simply, polarity occurs when the electron distribution in a molecule is asymmetric. This results in a net dipole moment in the molecule. One end of the molecule is charged negative while the other gets a positive charge.


 


The polarization of a molecule greatly depends on the shape of the molecule. A diatomic molecule like HF mentioned above has no issue of shape. The net dipole moment is only due to the uneven distribution of electrons between the two atoms. However, when there are more than two atoms involved in making a bond, there are many complexities.


 


The water molecule is of bent shape. Therefore, when the two pair of electrons shared by oxygen with two hydrogen atoms is pulled towards oxygen, the net dipole moment results in the direction of the oxygen atom. There is no other force to cancel out the resultant dipole moment. Hence, the water molecule is highly polar.


 


Ammonia molecule is of a pyramid shape and the electronegative N atom pulls the electrons towards itself. The three N-H bonds are not in the same plane; hence the dipole moments created do not get canceled out. This makes ammonia a polar molecule.


 


However, the dipole moments sometimes get canceled due to the shape of the molecules, making the molecule non-polar. Carbon dioxide is such a molecule.

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Q:

What is the Budgetary allocation to the Pradhan Mantri Gram Sadak Yojana in 2019?

A) Rs 25,000 Crores B) Rs 19,000 Crores
C) Rs 15, 000 Crores D) Rs 28, 000 Crores
 
Answer & Explanation Answer: B) Rs 19,000 Crores

Explanation:

In 2019, the Budgetary allocation to the Pradhan Mantri Gram Sadak Yojana was Rs 19,000 Crores.

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Q:

Pop music appeals to which type of audience?

A) A broad audience B) North American-born individuals only
C) An old audience D) A niche audience
 
Answer & Explanation Answer: A) A broad audience

Explanation:
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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

He is suffering from fever for a week.

A) was suffering B) had suffering
C) has been suffering D) No improvement
 
Answer & Explanation Answer: C) has been suffering

Explanation:
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Q:

An atom that loses or gains electrons is called

A) Proton B) Ion
C) Isotope D) Neutron
 
Answer & Explanation Answer: B) Ion

Explanation:

An atom that loses or gains electrons is called as ion. Gaining of electron is negative charge and is called as Anion and lossing of eectron is called Cation.

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Q:

Bilateral monopoly occurs where

Answer

Bilater monopoly occurs in a market where a single seller i.e, a only one monopoly and a single buyer i.e, one monopsony exists.

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Modern civilization is completely dependent on energy, which has therefore to be abundant and also economical. About 85% of the world's energy is supplied by oil, coal and natural gas while nuclear, hydro, wind and solar power and biomass supply the rest. Coal, nuclear and hydro are used primarily to generate electricity while natural gas is widely used for heating. Biomass is used both for heating and cooking. The wind and solar power is the future's hope as they are sustainable energy sources. Oil powers almost all machines that move and that makes oil uniquely versatile. Oil powered airplanes carry 500 people across the widest oceans at nearly the speed of sound. Oil powered machines produce and transport food. Oil powered machines are ubiquitous. Clearly, we live in the age of oil but it is drawing to a close. According to data available if oil production remains constant until it's gone, there is enough to last 42 years. Oil wells will produce less as they become depleted, which will make it impossible to keep production constant. Similarly natural gas and coal will last another 61 years and 133 years respectively. Naturally, as they become scarce, they become expensive, leading to a worldwide energy crisis. If we are to survive on this planet, we have to make a transition to sustainable energy sources. The transition may be willy-nilly or planned - the choice is ours.

The dawning era of limited and expensive energy will be very difficult for everyone on earth but will be even more difficult if it is not anticipated. It is of utmost importance that the public and policymakers understand the global energy crisis and act in tandem to ensure that the species 'homo sapiens' does not become extinct.

The theme of the passage is

A) Changing Lives B) Looming Energy Crisis
C) Energy Resources D) Power in Today's world
 
Answer & Explanation Answer: B) Looming Energy Crisis

Explanation:
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Q:

The Reserve Bank of India has recently constituted a high-level task force on Public Credit Registry (PCR) to suggest a road map for developing a transparent, comprehensive and near-real-time PCR for India. The task force is headed by

A) Sekar Kamam B) Vishakha Mulye
C) Sriram Kalyanaraman D) Y. M. Deosthalee
 
Answer & Explanation Answer: D) Y. M. Deosthalee

Explanation:

The Reserve Bank of India has constituted a 10-member ‘High Level Task Force on Public Credit Registry (PCR) for India’, which will, among other things, suggest a roadmap for developing a transparent, comprehensive and near-real-time PCR for India.Headed by YM Deosthalee, ex-CMD, L&T Finance Holdings, the task force includes Sekar Karnam, DMD & Chief Credit Officer, SBI; Vishaka Mulye, ED, ICICI Bank; Rashesh Shah, Chairman and CEO, Edelweiss Group; and Sriram Kalyanaraman, MD and CEO, National Housing Bank.

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