Steel differs from pig iron and wrought iron in that it contains

  • A

    No carbon at all

  • B

    Less carbon than either

  • C

    More carbon than either

  • D

    An amount of carbon intermediate between two

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Which of the following is more paramagnetic

The purple colour of $KMnO_4$ is due to the transition

  • [AIIMS 2009]

Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$.

Assertion $A:$ The spin only magnetic moment value for $\left[ Fe ( CN )_6\right]^{3-}$ is $1.74 BM$, whereas for $\left[ Fe \left( H _2 O \right)_6\right]^{3+}$ is $5.92\,BM$.

Reason $R :$ In both complexes, $Fe$ is present in +3 oxidation state.

In the light of the above statements, choose the correct answer from the options given below:

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Stainless steel is an alloy of iron with

The $d-$ block element which is a liquid at room temperature, having high specific heat, less reactivity than hydrogen and its chloride $(MX_2)$ is volatile on heating is