1. A
   concave
2. B
   convex
3. C
   cylindrical
4. D
   plane

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1. A
   Ultraviolet waves
2. B
   Infrared waves
3. C
   Radio waves
4. D
   Microwaves

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1. A
   free electrons
2. B
   conduction electrons
3. C
   ions
4. D
   holes

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1. A
   13·6 MeV
2. B
   13·6 eV
3. C
   13·6 Joule
4. D
   Zero

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1. A
   air
2. B
   hydrogen
3. C
   hydrogen and oxygen
4. D
   water vapour

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1. A
   HCl
2. B
   $\text{CH}_3\text{COOH}$
3. C
   $\text{CH}_3\text{OH}$
4. D
   NaOH

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1. A
   in etching glass
2. B
   as a bleaching agent
3. C
   as an extremely strong oxidizing agent
4. D
   in the preparation of strong organic fluorine compounds

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1. A
   ${}^{32}_{16}\text{S}$
2. B
   ${}^{34}_{16}\text{S}^+$
3. C
   ${}^{40}_{18}\text{Ar}^+$
4. D
   ${}^{35}_{16}\text{S}^{2-}$

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1. A
   22 atoms per mole
2. B
   twice the mass percent of H as compared to the mass percent of C
3. C
   six times the mass percent of C as compared to the mass percent of H
4. D
   thrice the mass percent of H as compared to the mass percent of O

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1. A
   Avogadro's hypothesis
2. B
   Gay-Lussac's hypothesis
3. C
   Planck's hypothesis
4. D
   Kirchhoff's theory

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1. A
   It proposed that the Indian magistrates would try Europeans in criminal cases.
2. B
   It allowed Indians to file criminal cases against Europeans.
3. C
   It authorized Indian ICS officers to try Europeans in courts.
4. D
   It was an agitation led by Ilbert in support of the nationalists.

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1. A
   The Solicitor General of India
2. B
   The Vice-President of India
3. C
   The Comptroller and Auditor General of India
4. D
   The Attorney General of India

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1. A
   Mangal Pandey
2. B
   Bahadur Shah II
3. C
   Queen Zeenat Mahal
4. D
   Nana Sahib

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1. A
   Murshid Quli Khan
2. B
   Saadat Khan
3. C
   Alivardi Khan
4. D
   Sarfaraz Khan

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1. A
   Henry Vivian Derozio
2. B
   David Hare
3. C
   Dwarkanath Tagore
4. D
   Prasanna Kumar Tagore

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1. A
   It broke out in August 1942.
2. B
   Ahmedabad Textile Mills went on strike for more than three months.
3. C
   Muslim League and Hindu Mahasabha actively participated in the movement.
4. D
   Communist Party did not support the movement.

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1. A
   Kidambi Srikanth
2. B
   Lin Dan
3. C
   B. Sai Praneeth
4. D
   Kento Momota

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1. A
   Nagpur
2. B
   Raipur
3. C
   Mumbai
4. D
   Secunderabad

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1. A
   The Heritage of Sport
2. B
   Cultural Heritage and Sustainable Tourism
3. C
   Past and Present Heritage
4. D
   Heritage and Science

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1. A
   Iran
2. B
   Syria
3. C
   Afghanistan
4. D
   Somalia

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1. A
   Secretary, Department of Financial Services
2. B
   Special Secretary, Department of Revenue
3. C
   Special Secretary, Department of Economic Affairs
4. D
   Deputy Governor, Reserve Bank of India

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1. A
   Finance
2. B
   Housing and Urban Affairs
3. C
   Food Processing Industries
4. D
   Earth Sciences

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1. A
   21$^{st}$ March
2. B
   23$^{rd}$ September
3. C
   22$^{nd}$ November
4. D
   22$^{nd}$ December

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1. A
   1 and 2 only
2. B
   2 and 3 only
3. C
   1 and 3 only
4. D
   1, 2 and 3

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1. A
   Western Disturbances
2. B
   North-east Monsoon
3. C
   South-west Monsoon
4. D
   Retreating Monsoon

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