Which one of the following statements is not correct?

  • A
    In $CO_2$ molecule,carbon hybridisation is $sp$.
  • B
    Fullerenes are made by heating graphite in an electric arc in the presence of argon gas.
  • C
    Both $[SiF_6]^{2-}$ and $[SiCl_6]^{2-}$ ions are known.
  • D
    In $CO$ molecule,there are one $\sigma$ and two $\pi$ bonds.

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Similar Questions

For correct statement use $T$ and for incorrect use $F$:
$(A)$ Hydrolysis of Marshall's acid gives $H_2SO_4$ and $H_2O_2$ as final products.
$(B)$ In $SCNSiH_3$ structure,the geometry around $N$ is bent.
$(C)$ The basic unit for silicates is $SiO_4^{4-}$.
$(D)$ $NH_4Cl + NaOH \to NH_3 \uparrow$.

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Match List-$I$ with List-$II$.
List-$I$ List-$II$
$A$. Coke $I$. Carbon atoms are $sp^3$ hybridised
$B$. Diamond $II$. Used as a dry lubricant
$C$. Fullerene $III$. Used as a reducing agent
$D$. Graphite $IV$. Cage like molecules

Choose the correct answer from the options given below:

The formula of $3$ membered discrete chain silicate is

Which of the following statements is correct with respect to the property of elements with an increase in atomic number in the carbon family (group $14$)?

Assertion: Diamond is a bad conductor.
Reason: Graphite is a good conductor.

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