1
JEE Main 2022 (Online) 30th June Morning Shift
Numerical
+4
-1
Change Language

In the following brown complex, the oxidation state of iron is +_____________.

$${[Fe{({H_2}O)_6}]^{2 + }} + NO \to \mathop {{{[Fe{{({H_2}O)}_5}(NO)]}^{2 + }}}\limits_{\text{Brown complex}} + {H_2}O$$

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2
JEE Main 2022 (Online) 30th June Morning Shift
Numerical
+4
-1
Change Language

Spin only magnetic moment ($$\mu$$s) of $${K_3}[Fe{(CN)_6}]$$ is ____________ B.M.

(Nearest integer)

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3
JEE Main 2022 (Online) 30th June Morning Shift
Numerical
+4
-1
Change Language

An organic compound with 51.6% sulfur is heated in a Carius tube. The amount of this compound which will form 0.752 g of barium sulphate is ___________ $$\times$$ 10$$-$$1 g.

(Given molar mass of barium sulphate 233 g mol$$-$$1) (Nearest integer).

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4
JEE Main 2022 (Online) 30th June Morning Shift
Numerical
+4
-1
Change Language

A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of H2 gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound 'X' is _____________.

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