1. A
   Generator
2. B
   Motor
3. C
   Transformer
4. D
   Vibrator

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1. A
   Reflection
2. B
   Interference
3. C
   Dispersion
4. D
   Total internal reflection

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1. A
   Magnetic meridian
2. B
   Magnetic equator
3. C
   Geographical pole
4. D
   Tropic of Cancer

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

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1. A
   supersonic
2. B
   subsonic
3. C
   300 m/s
4. D
   about 10 m/s

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

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1. A
   Hydrogencarbonates
2. B
   Carbonates
3. C
   Chlorides
4. D
   Sulphates

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1. A
   Acetic acid
2. B
   Methanoic acid
3. C
   Sulphuric acid
4. D
   Hydrochloric acid

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1. A
   Lithium
2. B
   Sodium
3. C
   Potassium
4. D
   Cesium

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1. A
   Electron
2. B
   Proton
3. C
   Nucleus
4. D
   Helium

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1. A
   liquid
2. B
   colloid
3. C
   non-crystalline amorphous solid
4. D
   crystalline solid

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1. A
   cellulose
2. B
   chitin
3. C
   cholesterol
4. D
   glycogen

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1. A
   Histomonas
2. B
   Trypanosoma
3. C
   Angomonae
4. D
   Naegleria

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1. A
   FDA
2. B
   WHO
3. C
   FSSAI
4. D
   FAO

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1. A
   Monocytes
2. B
   Platelets
3. C
   Eosinophils
4. D
   Neutrophils

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1. A
   Renin
2. B
   Nitrogenase
3. C
   Hydrolase
4. D
   Mono-oxygenase

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1. A
   no nucleus, no mitochondria and no endoplasmic reticulum
2. B
   nucleus, mitochondria and endoplasmic reticulum
3. C
   nucleus, mitochondria but no endoplasmic reticulum
4. D
   no mitochondria but endoplasmic reticulum is present

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1. A
   Sikkim
2. B
   Nagaland
3. C
   Manipur
4. D
   Mizoram

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1. A
   Washington
2. B
   Geneva
3. C
   Moscow
4. D
   London

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1. A
   4 3 2 1
2. B
   4 2 3 1
3. C
   1 2 3 4
4. D
   1 3 2 4

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

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1. A
   Chief Economist, IMF
2. B
   Deputy Governor, Reserve Bank of India
3. C
   Chief Economic Advisor to the Government of India
4. D
   Professor of Economics at Harvard University

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1. A
   Najma Heptulla
2. B
   Ram Nath Kovind
3. C
   Acharya Dev Vrat
4. D
   Arvind Subramaniam

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1. A
   Bangladesh
2. B
   Sri Lanka
3. C
   Pakistan
4. D
   Afghanistan

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1. A
   New Delhi
2. B
   Mumbai
3. C
   Shillong
4. D
   Guwahati

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