Practice Question and Answer
8Q: The reactivity of an atom arises from 3101 05b5cc64de4d2b4197774bc9d
5b5cc64de4d2b4197774bc9d- 1the existence of unpaired electrons in the valence shelltrue
- 2the energy differences between the electron shellsfalse
- 3the sum of the potential energies of all the electron shellsfalse
- 4the average distance of the outermost electron shell from the nucleusfalse
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Answer : 1. "the existence of unpaired electrons in the valence shell"
Explanation :
Answer: A) the existence of unpaired electrons in the valence shell Explanation: When atoms react they do so in order to reach the lowest energy, which is the most stable. The electrons orbitals will overlap in the way that reduces the energy the most. Orbitals of similar energy will produce the greatest stabilisation.The answer you gave isn't the whole story, it depends what species is reacting with what. The effective nuclear charge on the atom will affect the energy of the valance electrons. Hence, the reactivity of an atom arises from the existence of unpaired electrons in the valence shell.
Q: He has the habit of getting into a row over trivial matters.
3100 05f3d212f069d3f5fd520cb1e
5f3d212f069d3f5fd520cb1e- 1seeking the helpfalse
- 2picking up a fighttrue
- 3getting a right pathfalse
- 4giving unwanted advicefalse
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Answer : 2. "picking up a fight "
Q: If 13 + 23 + .....+103 = 3025 then 4 + 32 + 108 + ..... 4000 is equal to -
3100 060be07d39f482d735c8f2faf
60be07d39f482d735c8f2faf- 112300false
- 212500false
- 312100true
- 411800false
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Answer : 3. "12100"
Q: Which of the following Stock exchanges is called "Big Board"? 3099 05b5cc7c4e4d2b41977750b9c
5b5cc7c4e4d2b41977750b9c- 1Nasdaqfalse
- 2London Stock Exchangefalse
- 3New York Stock Exchangetrue
- 4Mumbai Stock Exchangefalse
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Answer : 3. "New York Stock Exchange"
Explanation :
Answer: C) New York Stock Exchange Explanation:
Q: Which gas in its solid state is also known as dry ice?
3099 05da566b39a081d0726b0f4a5
5da566b39a081d0726b0f4a5- 1Carbon dioxidetrue
- 2Hydrogenfalse
- 3Nitrogenfalse
- 4Oxygenfalse
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Answer : 1. "Carbon dioxide"
Q: Under whose Chairmanship a huge convention of Meena Caste was held in April 1944 at Neemkathana?
3099 06307bae31ff92f3f9e6fe372
6307bae31ff92f3f9e6fe372- 1Shantisagar Ji Maharajfalse
- 2Magansagar Ji Maharajtrue
- 3Hiralal Shastrifalse
- 4Shobhalal Guptafalse
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Answer : 2. "Magansagar Ji Maharaj"
Q:Identify the segment in the sentence which contains the grammatical error.
If she left now, she would reach the station on time.
3098 060471190f4cbdc2348596a31
60471190f4cbdc2348596a31- 1she would reachfalse
- 2the station on timefalse
- 3if she left nowfalse
- 4No errortrue
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Answer : 4. "No error"
Q: In a certain Language “EDITION” is written as “IDETNOI” then how “MEDICAL” is written as____.
3098 05f0c13becec10557a8daa050
5f0c13becec10557a8daa050- 1DEMILACtrue
- 2LACIMEDfalse
- 3DIEMCALfalse
- 4CADILEMfalse
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