Arrange the following compounds in decreasing order of their boiling points:
A. Ethoxyethane
B. n-Butane
C. Pentanal
D. Pentan-1-ol
Choose the correct answer from the options given below

The standard electrode potential for a Daniell cell is 1.1 V. Calculate the standard Gibbs energy for the reactiction
\(Zn ( s )+ Cu ^{2+}( aq ) \rightarrow Zn ^{2Solution+}( aq )+ Cu ( s )\)

Given :
\(\begin{array}{l}
E_{K^{+} / K}^{\circ}=-2.93 V \\
E_{Ag^{+} / Ag}^{\circ}=0.80 V \\
E_{Hg^{2+} / Hg}^{\circ}=0.79 V \\
E_{Mg^{2+} / Mg^{-}}^{\circ}=-2.37 V \\
E_{Cr^{3+} / Gr}^{\circ}=-0.74 V
\end{array}\)
Choose the correct order :
(A) \(Ag < Hg < Cr < Mg < K\) (increasing reducing power)
(B) \(Ag < Hg < Cr < Mg < K\) (decreasing oxidising power)
(C) \(Ag > Hg > Cr > Mg > K\) (decreasing oxidising power)
(D) \(Hg > Cr > Ag > K > Mg\) (increasing reactivity )
(E) \(K > Mg > Cr > Hg > Ag\) (decreasing reactivity order)
Choose the correct answer from the options given below :

Which of the following are fat soluble vitamins :
(A) vit A
(B) vit B
(C) vit D
(D) vit E
(E) vit K
Choose the \textbf{correct} answer from the options given below :

Which of the following complexes show linkage isomerism?

In the following compounds, what is the increasing order of their reactivity towards nucleophilic addition reactions?
Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone

The increasing order of magnetic behaviour for the following complexes is
A. \([Ti(H_2O)_6]^{3+}\)
B. \([V(H_2O)_6]^{3+}\)
C. \([MnCl_4]^{2-}\)
D. \([MnF_6]^{3-}\)
E. \([Cr(H_2O)_6]^{3+}\)
Choose the correct answer from the options given below :

A man rows downstream 30 km and upstream 20 km. If he takes 5 hours to cover each distance, then the speed of stream is

Read the given paragraph and answer the question:
Humans have 23 pairs of chromosomes. 22 pairs are exactly same in both males and females; these are the autosomes. A pair of X-chromosome are present in the female, whereas the presence of an X and Y chromosome are determinant of the male characteristic.
A number of disorders in human beings have been found to be associated with the inheritance of changed or altered genes or chromosomes. Broadly, genetic disorder may be grouped into two categories-Mendelian disorders and Chromosomal disorders.
A haemophilic man marries a normal woman. What is the possibility that their child have haemophilia?

If \(f(x)=\left\{\begin{array}{ll}\frac{\sin \pi x}{5 x}, & x \neq 0 \\ k, & x=0\end{array}\right.\) is continuous at \(x=0\), then \(k\) is :

The major product of Kolbe's reaction is used for the synthesis of a precursor substrate in the preparation of aspirin
The electrophile used in Kolbe's reaction is

Width of two slits in Young's double slits experiment are in the ratio 9:4.
The ratio of the amplitudes of light waves through them would be:

If the wave length of 1st line of Balmer series of hydrogen is 6561A, the wavelength of the 2nd line of series will be: