Science (English Medium) इयत्ता १२ - CBSE Question Bank Solutions

3-methylphenol is called ____________.

One of the following is not a dihydroxy derivative of benzene.

(C₂H₅)₂CHNH₂. The following amine can be classified as:

The following amine can be classified as (C₂H₅)₂NH:

The following amine can be classified as:

The main product is formed by treating an alkyl or benzyl halide with excess ammonia ____________.

The following molecule is called as:

\[\begin{array}{cc}
\ce{CHO}\phantom{..}\\
|\phantom{......}\\
\ce{(CHOH)4}\\
|\phantom{......}\\
\ce{CH2OH}
\end{array}\]

Glycosidic linkage is found between ____________.

An AB₂ type structure is found in ____________.

The compound, found in nature in gas phase but ionic in solid state is ____________.

Solid CH₄ is ____________.

An example of a covalent crystalline solid is ____________.

Among solids, the highest melting point is exhibited by ____________.

Which of the following exists as covalent crystals in the solid state?

The major binding force of diamond, silicon and quartz is ____________.

In graphite electrons are ____________.

Which one of the following forms a molecular solid when solidified?

Which of the following is a network solid?

Iodine molecules are held in the crystals lattice by ______.

Which of the following is not the characteristic of ionic solids?