AP EAPCET 2021 - 19th August Evening Shift | Chemical Bonding and Molecular Structure Question 28 | Chemistry

The structure of diborane B$$_2$$H$$_6$$ is given below. Identify the bond angles of x and y. In diborane, ........... are commonly known as banana-bonds.

AP EAPCET 2021 - 19th August Evening Shift Chemistry - Chemical Bonding and Molecular Structure Question 27 English

x = 101$$\Upsilon$$, y = 118$$\Upsilon$$ and 2-centred-3-electron bonds

x = 97$$\Upsilon$$, y = 120$$\Upsilon$$ and 3-centred-2-electron bonds

x = 118$$\Upsilon$$, y = 79$$\Upsilon$$ and ionic bond between the two boron

x = 79$$\Upsilon$$, y = 118$$\Upsilon$$ and ionic bond between the two boron

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

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The incorrect statement(s) among the following is/are

$$\mathrm{NCl}_5$$ does not exist while $$\mathrm{PCl}_5$$ does

$$\mathrm{Pb}$$ prefers to form tetravalent compounds

The three $$\mathrm{C}-\mathrm{O}$$ bonds are equal in the $$\mathrm{CO}_3^{2-}$$ ion

Both $$\mathrm{O}_2^{+}$$ and $$\mathrm{NO}$$ are paramagnetic

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

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Due to $$p \pi-p \pi$$ bonding interactions, nitrogen for $$\mathrm{N}_2$$. But phosphorus forms .................. and does not form a diatomic molecule.

$$P_5$$

$$P_3$$

$$\mathrm{P}_4$$

$$P_6$$

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

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Identify the incorrect statements among the following?

(i) $$\mathrm{SF}_6$$ does not react with water.

(ii) $$\mathrm{SF}_6$$ is $$s p^3 d$$ hybridised.

(iii) $$\mathrm{S}_2 \mathrm{O}_3^{2-}$$ is a linear ion.

(iv) There is no $$\pi$$-bonding in $$\mathrm{SO}_4^{2-}$$ ion.

(ii), (iii) and (iv)

(i), (ii) and (iii)

(i) and (ii)

(iii) and (iv)

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