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Magnetic quantum number signifies

Among the following, one which reacts most readily with ethanol is:

A
certain salt X,
gives the following results.

(i) Its
aqueous solution is alkaline to litmus.

(ii)
It swells up to a glassy material Y
on strong heating.

(iii) When conc. H₂SO₄
is added to a hot solution of X,
white crystal of an acid Z
separates out.

Write
equations for all the above reactions and identify X,
Y and Z.

Consider the following compounds

Hyperconjugation occurs in which of the above?

On moving across a period, the atomic size decreases and nuclear charge increases and therefore the force of attraction exerted by the nucleus on the electron in the outermost shell increases.

For the process

$A_{\left(g\right)}+e^{-}\to A_{\left(g\right)}^{-};\Delta H=xand{A}_{\left(g\right)}^{-}\to A_{\left(g\right)}+e^{-};\Delta H=y$

Select correct alternate:

Among the following the lowest degree of paramagnetism per mole of the compound at 298 K will be shown by:

Which of the following is not true about the ionic solids ?

(a) Bigger ions form the close packed structure

(b) Smaller ions occupy either the tetrahedral or the octahedral voids depending upon their size

(c) Occupation of all the voids is not necessary

(d) The fraction of octahedral or tetrahedral voids occupied depends upon the radii of the ions occupying the voids

The reagent 'R' in the given sequence of chemical reaction is :

Inspite of long range order in the arrangement of particles why are the crystals usually not perfect ?

7.5 grams of a gas occupy 5.8 litres of volume at STP the gas is

Calculate the molality of a $1L$ solution of $68\%H_{2}S{O}_4\left(\frac{w}{v}\right),$ if the density of the solution is given as $1.80gm{L}^{-1}$.

Consider following conditions for quantum numbers:

$n+l=5$

$s=\pm \frac{1}{2}$

Which of the following option(s) match(es) with the maximum number of electrons such that the above are satisfied in the ground state?

Look at the following reaction:

$LiH+Al{H}_3⟶LiAl{H}_4$



Here $Al{H}_3$ and $LiH$ act as:

How many valence electrons are required in impurity, to be added to silicon, to get an an n-type semiconductor?

Which among the following statement is false

[KCET (Med.) 2002]

Consider the following particulars in respect of a concrete mix design:

Identify the catalyst in the hydration of alkenes to produce alcohols.

Which of the following is/are elimination reaction(s)?

The molecular mass of butyric acid was determined by experiment to be 88 $gmo{l}^{-1}$. What is the molecular formula?

Empirical formula=.$C_2{H}_{4}O$

Which of the following hydrocarbons has the lowest dipole moment?

The apparatus used to measure heat changes during chemical reactions is called

A research guide instructed his two students to synthesize complex $\left[Co\right(N{H}_3{)}_5\left(N{O}_2\right)]C{l}_2$

They synthesized the complexes with identical molecular formula, molar mass, geometry, conductance and spin, but they differed in colour. Bases on the above facts the following question.

(i) The difference in colour is due to:

Which one of the following ions has the highest value of ionic radius?

The structure of the major product formed in the following reaction is

Explain hybridization of {I₃}^-