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MBD PUBLICATION-SOME P-BLOCK ELEMENTS-QUESTION BANK
- Lead is not affected by dilute HCl in cold, because:
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- An insulator is :
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- Which of the following is amphoteric ?
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- Which is neutral to litmus?
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- Which can be directly brought into solid state from gaseous state ?
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- Which is/are fire extinguishers?
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- Tin sulphide is :
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- When Co is heated with NaOH under pressure , we get :
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- Which is not used as a refrigerant
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- Good conductor of heat and current is :
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- Man dies in an atmosphere of carbon monoxide, because it :
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- Graphite is used in nuclear reactors :
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- A substance has a very large fuel value. I g of its complete combustio...
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- The greatest percentage of CO is in :
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- Chemically zeolites are:
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- Carbon tetrachloride has zero dipole moment because of :
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- Mica is chemically :
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- Asbestos is chemically :
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- The nature of bonding in diamond is :
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- Commercially important ore of lead is :
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