1. A
   Subandhu
2. B
   Bhatti
3. C
   Sandhyakara
4. D
   Kamban

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1. A
   Regulating Act of 1773
2. B
   Pitt's India Act of 1784
3. C
   Charter Act of 1793
4. D
   Charter Act of 1813

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1. A
   Guru Nanak
2. B
   Guru Arjan
3. C
   Guru Hargobind
4. D
   Guru Gobind Singh

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1. A
   First Five Year Plan
2. B
   Second Five Year Plan
3. C
   Third Five Year Plan
4. D
   Sixth Five Year Plan

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1. A
   1956-1957
2. B
   1966-1969
3. C
   1975-1976
4. D
   1992-1993

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1. A
   1 only
2. B
   2 only
3. C
   Both 1 and 2
4. D
   Neither 1 nor 2

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

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

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

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1. A
   Balwant Rai Mehta Committee
2. B
   Ashok Mehta Committee
3. C
   L. M. Singhvi Committee
4. D
   Abhijit Sen Committee

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1. A
   $\text{CaCO}_3 + \text{H}_2\text{O} + \text{CO}_2 \to \text{Ca(HCO}_3)_2$
2. B
   $\text{Ca(OH)}_2 + \text{CO}_2 \to \text{CaCO}_3 + \text{H}_2\text{O}$
3. C
   $\text{CaO} + \text{CO}_2 \to \text{CaCO}_3$
4. D
   $\text{CaCl}_2 + \text{H}_2\text{O} + \text{CO}_2 \to \text{CaCO}_3 + 2\text{HCl}$

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1. A
   Water of crystallization is the fixed number of water molecules present in one formula unit of a salt
2. B
   The molecular formula of Plaster of Paris is $\text{CaSO}_4\cdot2\text{H}_2\text{O}$
3. C
   Washing soda is used for removing the permanent hardness of water
4. D
   The atmosphere of Venus is made up of thick white and yellow clouds of sulphuric acid

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1. A
   Analgesic
2. B
   Antiseptic
3. C
   Antibiotic
4. D
   Antacid

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1. A
   $2\text{CaO}\cdot\text{SiO}_2$
2. B
   $3\text{CaO}\cdot\text{SiO}_2$
3. C
   $4\text{CaO}\cdot\text{SiO}_2$
4. D
   $3\text{CaO}\cdot\text{Al}_2\text{O}_3$

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1. A
   Burning of coal
2. B
   Rusting of metal
3. C
   Melting of ice
4. D
   Reaction of acid with base

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1. A
   The interconversion of states of matter is a physical change
2. B
   During burning of a candle, both chemical and physical changes take place
3. C
   During a physical change, the chemical composition of molecules changes
4. D
   Rusting of iron is a chemical change

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1. A
   Sulphur in carbon disulphide
2. B
   Mixture of sugar and salt crystals
3. C
   Sandy water
4. D
   Sulphur in water

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

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1. A
   $\text{H}_2\text{O}_2$
2. B
   $\text{N}_2\text{H}_4$
3. C
   $\text{N}_2$
4. D
   $\text{H}_2\text{O}$

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1. A
   River water
2. B
   Sea water
3. C
   Well water
4. D
   Rain water

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1. A
   Sulphates of calcium
2. B
   Chlorides of magnesium
3. C
   Bicarbonates of magnesium
4. D
   Sulphates of magnesium

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

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1. A
   $\text{CH}_4\text{(g)} + 2\text{O}_2\text{(g)} \to \text{CO}_2\text{(g)} + 2\text{O}_2\text{(g)}$
2. B
   $\text{C}_6\text{H}_{12}\text{O}_6\text{(aq)} + 6\text{O}_2\text{(g)} \to 6\text{CO}_2\text{(g)} + 6\text{H}_2\text{O(l)}$
3. C
   $\text{N}_2\text{(g)} + 3\text{H}_2\text{(g)} \to 2\text{NH}_3\text{(g)}$
4. D
   $2\text{Pb(NO}_3)_2\text{(s)} \to 2\text{PbO(s)} + 4\text{NO}_2\text{(g)} + \text{O}_2\text{(g)}$

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1. A
   $\text{H}_2\text{O} + \text{CO}_2$
2. B
   $\text{NH}_3$
3. C
   $\text{H}_2 + \text{N}_2$
4. D
   $\text{CO} + \text{H}_2$

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1. A
   Diamond is hard due to extended covalent bonding in it
2. B
   Fullerene is composed of five and six membered rings
3. C
   Diamond is a good conductor of electricity
4. D
   Graphite is used as a lubricant

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