1. A
   Nucleolus
2. B
   Chloroplast
3. C
   Ribosome
4. D
   Plasma Membrane

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1. A
   Ribosome
2. B
   Nucleus
3. C
   Mitochondria
4. D
   Chloroplast

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1. A
   Fibres
2. B
   Tracheids
3. C
   Pericycle
4. D
   Sieve tubes

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1. A
   $\textit{Cladophora}$
2. B
   $\textit{Penicillium}$
3. C
   $\textit{Marsilea}$
4. D
   $\textit{Anabaena}$

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1. A
   Caterpillar
2. B
   Crabapple tree
3. C
   Frog
4. D
   Sparrowhawk

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1. A
   greatest difference in the sea level at high and low tides
2. B
   lowest difference in the sea level at high and low tides
3. C
   no difference in the sea level at high and low tides
4. D
   counteraction of gravitational pull of the Sun to that of Moon

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1. A
   Nuclear energy
2. B
   Chemical energy
3. C
   Potential energy
4. D
   Thermal energy

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1. A
   a shower of rain drops
2. B
   a plane mirror
3. C
   a convex lens
4. D
   a combination of a convex lens and a concave lens

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1. A
   Gravitational potential energy $\rightarrow$ heat energy to air $\rightarrow$ kinetic energy $\rightarrow$ heat energy to ground and apple $\rightarrow$ sound energy
2. B
   Gravitational potential energy $\rightarrow$ sound energy $\rightarrow$ kinetic energy $\rightarrow$ heat energy to air $\rightarrow$ heat energy to ground and apple
3. C
   Gravitational potential energy $\rightarrow$ kinetic energy $\rightarrow$ heat energy to air $\rightarrow$ heat energy to ground and apple $\rightarrow$ sound energy
4. D
   Gravitational potential energy $\rightarrow$ kinetic energy $\rightarrow$ sound energy $\rightarrow$ heat energy to air $\rightarrow$ heat energy to ground and apple

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1. A
   Bauxite
2. B
   Quartz
3. C
   Feldspar
4. D
   Pitchblende

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1. A
   $\text{CH}_3(\text{CH}_2)_{10}\text{CH}_2\text{O SO}_3^-\text{Na}^+$
2. B
   $[\text{CH}_3(\text{CH}_2)_{15}-\text{N}-(\text{CH}_3)_3]^+\text{Br}^-$
3. C
   $\text{CH}_3(\text{CH}_2)_{16}\text{COO}^-\text{Na}^+$
4. D
   $\text{CH}_3(\text{CH}_2)_{16}\text{COO}(\text{CH}_2\text{CH}_2\text{O})_n\text{CH}_2\text{CH}_2\text{OH}$

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1. A
   Coke
2. B
   Propane
3. C
   Petrol
4. D
   Wax

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1. A
   Calcium (Ca)
2. B
   Potassium (K)
3. C
   Magnesium (Mg)
4. D
   Sodium (Na)

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1. A
   $\text{Mg}^{2+}$, Ar
2. B
   $\text{Na}^+$, $\text{O}^{2-}$
3. C
   $\text{Al}^{3+}$, $\text{Cl}^-$
4. D
   $\text{K}^+$, Ne

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1. A
   Titanium dioxide
2. B
   Novolac
3. C
   Phthalocyanine
4. D
   Silicones

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1. A
   Air mass forms either in tropical or in polar region
2. B
   Air mass develops on continents as well as over ocean
3. C
   Air mass develops in a cyclonic condition
4. D
   Air mass changes the weather conditions

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1. A
   New Delhi
2. B
   Kolkata
3. C
   Pune
4. D
   Chennai

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1. A
   Australia
2. B
   Central Africa
3. C
   South America
4. D
   East Asia

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1. A
   Adelaide
2. B
   Darwin
3. C
   Hobart
4. D
   Brisbane

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1. A
   East Asia
2. B
   West Coast of Africa
3. C
   Sahara of Africa
4. D
   Mesopotamia

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1. A
   Orographic rainfall
2. B
   Convectional rainfall
3. C
   Cyclonic rainfall (Tropical)
4. D
   Cyclonic rainfall (Temperate)

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1. A
   Charles Grant
2. B
   John Stuart Mill
3. C
   James Mill
4. D
   William Jones

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1. A
   Hindu-Muslim divide
2. B
   Support to the English Government
3. C
   The return of the Badshahi
4. D
   The imposition of heavy Jumas (revenue demand)

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1. A
   Lord Irwin
2. B
   Lord Wavell
3. C
   Lord Mountbatten
4. D
   Lord Willingdon

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1. A
   Ghanshyam Das Birla
2. B
   Ambalal Sarabhai
3. C
   Sir Biren Mookerjee
4. D
   T. T. K. Krishnamachari

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