MHT CET 2020 19th October Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

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Which of the following molecules has a central atom with complete octet?

Boron trifluoride

Methane

Aluminium chloride

Sulphur hexafluoride

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following molecular formula represents Marshall's acid?

$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_7$

$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_8$

$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_6$

$\mathrm{H}_2 \mathrm{SO}_5$

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

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An element crystallises in fcc type of unit cell. The volume of one unit cell is $24.99 \times 10^{-24} \mathrm{~cm}^3$ and density of the element $7.2 \mathrm{~g} \mathrm{~cm}^{-3}$. Calculate the number of unit cells in 36 g of pure sample of element?

$2.0 \times 10^{23}$

$1.25 \times 10^{21}$

$2.0 \times 10^{21}$

$2.0 \times 10^{24}$

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following reagents is used for the following conversion?

$$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO} \longrightarrow \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}$$

$\mathrm{LiAlH}_4$

$\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}$

$\mathrm{H}_2 / \mathrm{Ni}$