Which of the following statements are false?

  • A
    $BeCl_2$ is a linear molecule in the vapour state but it is polymeric in the solid state.
  • B
    Oxides of both $Be$ and $Ca$ are amphoteric.
  • C
    Carbides of both $Be$ and $Ca$ react with water to form acetylene.
  • D
    Both $(B)$ and $(C)$

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Similar Questions

Match List-$I$ with List-$II$ :
List-$I$ (Elements) List-$II$ (Properties)
$(a)$ $Ba$ $(i)$ Organic solvent soluble compounds
$(b)$ $Ca$ $(ii)$ Outer electronic configuration $6s^2$
$(c)$ $Li$ $(iii)$ Oxalate insoluble in water
$(d)$ $Na$ $(iv)$ Formation of very strong monoacidic base

Choose the correct answer from the options given below :

An extremely hot copper wire reacts with steam to give:

Which of the anhydrous salts,when it comes in contact with water,turns blue?

Which of the following is the main component of Portland cement (besides lime)?

$\underbrace{HgI_2}_{X}$ $\xrightarrow[\text{Sublimation}]{\Delta} \underbrace{HgI_2}_{Y}$ $\xrightarrow[\text{On rubbing}]{\text{Cooling}} \underbrace{HgI_2}_{Z}$

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