Let $p = (x + 4y)\,a + (2x + y + 1)\,b$ and $q = (y - 2x + 2)\,a + (2x - 3y - 1)\,b,$ where $a$ and $b$ are non-collinear vectors. If $3p = 2q,$ then the values of $x$ and $y$ are:

  • A
    $x = -1, y = 2$
  • B
    $x = 2, y = -1$
  • C
    $x = 1, y = 2$
  • D
    $x = 2, y = 1$

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At $527 \, ^oC$,the reaction given below has $K_c = 4$:
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Select the correct statement from the following.

The oxoanion which contains all equivalent $M-O$ bonds is:
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$(II)$ $MnO_4^{-}$
$(III)$ $Cr_2O_7^{2-}$

Which of the following is a pair of functional isomers?

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