HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Answer the following.

Explain the trend in following atomic properties of group 16 elements:

Ionisation enthalpy

Explain the trend in following atomic properties of group 16 elements:

Electronegativity

Choose the most correct option.

Electronic configuration of Cu and Cu¹⁺ are _______.

Choose the most correct option.

Which of the following have d⁰s⁰ configuration?

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In which of the following series all the elements are radioactive in nature?

Answer the following

Write the probable electronic configuration of chromium and copper.

Choose the most correct option.

The oxidation state of cobalt ion in the complex [Co(NH₃)₅ Br]SO₄ is __________.

Answer the following in one or two sentences.

What is the shape of a complex in which the coordination number of the central metal ion is 4?

Write the structure and IUPAC name of the major product in the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2Cl + NaI ->[Acetone]}\\
|\phantom{..................}\\
\ce{CH3\phantom{...............}}
\end{array}\]

Write the structure and IUPAC name of the major product in the following reaction.

\[\ce{CH3 - CH2Br + SbF3 ->}\]

Write the structure and IUPAC name of the major product in the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH - CH = CH2 + HBr ->[peroxide]}\\
|\phantom{........................}\\
\ce{CH3\phantom{.....................}}
\end{array}\]

Write the structure and IUPAC name of the major product in the following reaction.

Write the structure and IUPAC name of the major product in the following reaction.

Give reason:

Alkyl halides are generally not prepared by free radical halogenation of alkanes.

Convert the following:

But-1-ene to n-butyl iodide

Resorcinol on distillation with zinc dust gives _________.

Write structural formulae for 3-Methoxyhexane

Write structural formula for Methyl vinyl ether.

Write structural formulae for 1-Ethylcyclohexanol.

Write structural formula for pentane-1,4-diol.