IMPORTANT QUESTIONS

1. Q151 Which of the following is acidic :

   • (a) Milk
   • (b) Dry mango (amchoor)
   • (c) Salt solution
   • (d) Sugar solution

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2. Q152 Any process in which addition of oxygen or removal of hydrogen take place is known as____

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3. Q153 Complete the following chemical equation: Cu(NO)₃)₂ + Zn →→

   • (a) Cu(NO)₃)₂ + Zn →→ CuNO₃ + ZnNO₃
   • (b) Cu(NO)₃)₂ + Zn →→ ZnCu + 2NO₃
   • (c) Cu(NO)₃)₂ + Zn →→ Zn(NO₃)₂ + Cu
   • (d) None of these

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4. Q154 What is the function of anal sphincter?

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5. Q155 How did the woodpecker get her food?

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6. Q156 What are four reasons of overeating?

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7. Q157 Explain the controversy between the Anglicists and Orientalists.

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8. Q158 Identify the cell organelle which is called powerhouse of the cell. State why is it called so?

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9. Q159 Convert it into mole - a. 22 g of oxygen gas. b. 12g of carbon dioxide.

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10. Q160 Convert the following temperatures to the kelvin (a) 25°C (b) 373°C

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