Questions

Q:

If we take a small amount of washing soda and add approximately 1 mL of dilute hydrochloric acid to it, what will we observe?

A) only neutralisation reaction occurs, no gas is released B) white-coloured precipitate is formed
C) CO2 gas comes out with brisk effervescence D) H2 gas comes out with pop sound
 
Answer & Explanation Answer: C) CO2 gas comes out with brisk effervescence

Explanation:
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Q:

The volume of 10 g of gas X is 5.6 litre at NTP. What is the molecular weight of X?

A) 40 B) 60
C) 50 D) 20
 
Answer & Explanation Answer: A) 40

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Q:

The Department of Industrial Policy and Promotion (DIPP), Ministry of Commerce and Industry, hosts a conference on Global Digital Content Market (GDCM) 2018 in which city?

A) New Delhi  B) Bengaluru 
C) Mumbai  D)  Kolkata 
 
Answer & Explanation Answer: A) New Delhi 

Explanation:

The Department of Industrial Policy and Promotion (DIPP), Ministry of Commerce and Industry, hosts a conference on Global Digital Content Market (GDCM) 2018, on 14th- 15thNovember 2018, in New Delhi. The conference will feature sessions on music, film, broadcasting and publishing, as well as collective management, emerging models and the implications for the market and policy makers.

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Q:

Potassium Permanganate is used for purifying drinking water, because________

A) It is a reducing agent B) It is an oxidising agent
C) It is a sterilising agent D) It dissolves the impurities of water
 
Answer & Explanation Answer: B) It is an oxidising agent

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Q:

Which   one   of   the   following   is   not   a semiconductor?

A) Silicon B) Germanium
C) Quartz D) Gallium arsenide
 
Answer & Explanation Answer: C) Quartz

Explanation:

Semiconductors are the basic materials used in the present solid state electronic devices like diode, transistor, ICs, etc. 2. Lattice structure and the atomic structure of constituent elements decide whether a particular material will be insulator, metal or semiconductor. Semiconductors are elemental (Si, Ge) as well as compound (GaAs, CdS, etc.). Silicon, Germanium, Gallium Arsenide are semiconductors, but Quartz is an insulator.

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

 

Ignorance is bliss

 

A) Lack of knowledge is a curse B) Sometimes it is better for you if you do not know all the facts
C) Fools believe they know more than the wise D) To be truly happy one should ignore everything else
 
Answer & Explanation Answer: B) Sometimes it is better for you if you do not know all the facts

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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

 

The current ______________ in global negotiations over climate change has stalled progress on the issue.

 

A) intransigence B) fallacy
C) stalemate D) rigidity
 
Answer & Explanation Answer: C) stalemate

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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

Many important projects have reached the final stage of _____.

A) accomplishment B) initiation
C) resolution D) implementation
 
Answer & Explanation Answer: D) implementation

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