Pick out the wrong combination.

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Question

(C) The iron atom in the haemoglobin of blood is in the $+2$ oxidation state,i.e.,iron is present as $Fe^{2+}$.$Mg^{2+}$ is the central atom of the ch

Vedclass · Accepted Answer

$Se^{2+} 	o 	ext{Kreb Cycle}$

Vedclass · Answer

(C) The iron atom in the haemoglobin of blood is in the $+2$ oxidation state,i.e.,iron is present as $Fe^{2+}$.$Mg^{2+}$ is the central atom of the chlorophyll molecule,which is essential for photosynthesis.Cobalt is an essential trace element for humans and is found at the centre of vitamin $B_{12}$ and a range of other co-enzymes called cobalamins.There is no involvement of $Se^{2+}$ in the Kreb cycle.Thus,the wrong combination is $C$.

Column-$I$	Column-$II$
$(i)$ Antiberiberi factor	$(A)$ Vitamin $C$
$(ii)$ Pancreas	$(B)$ Glycerides
$(iii)$ Palm oil	$(C)$ Vitamin $B_1$
$(iv)$ $L(+)$-Ascorbic acid	$(D)$ Insulin

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The first viral disease detected in human beings was:

Match Column-$I$ with Column-$II$ and select the correct option.

Column-$I$ Column-$II$

$(i)$ Antiberiberi factor $(A)$ Vitamin $C$

$(ii)$ Pancreas $(B)$ Glycerides

$(iii)$ Palm oil $(C)$ Vitamin $B_1$

$(iv)$ $L(+)$-Ascorbic acid $(D)$ Insulin

Yeast cells derive their energy from glucose by

Assertion : $Mg$ is not present in the enamel of human teeth.
Reason : $Mg$ is an essential element for the biological functions of humans.

Identify the source of gallic acid from the following.

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