Which of the following will show positive Fehling's test?
(A) Propanone
(B) Propanal
(C) Benzaldehyde
(D) p-Methoxy benzaldehyde (E) 2-Phenyl ethanal
Choose the correct answer from the options given below :

Fog is a colloidal solution of

The reaction for the conversion of phenol into salicylic acid is known as

In Clemmensen reduction the carbonyl compound is treated with

Among the following reaction(s) which gives (give) tert-butylbenzene as the major product
(A)
(B)
(C)
(D)
(E)

Choose the correct answer from the options given below:

The half life of a first order reaction having rate constant, \(k=1.7 \times 10^{-5} s^{-1}\) is

Units of molar conductance is:

Read the passage carefully and answer the questions based on the passage:
Pollen pistil interaction involves all events from the landing of pollen grains on the stigma until the pollen tube enters the embryo sac (when the pollen is compatible). When a pollen tube grows through the style and enters into the ovules, it finally discharges two male gametes in one of the synergids. Syngamy and triple fusion are two fusion events occur in angiosperms. Thus, angiosperms exhibit double fertilization. The products of these fusions are the diploid zygote and triploid primary endosperm nucleus. Zygote develops into embryo and primary endosperm cell forms the endosperm tissue. The developing embryo passes through different stages before maturation.
With reference to reproduction in flowering plants, which one of the following is incorrect?

If \(\theta\) is an acute angle and the vector \(\vec{a}=(\sin \theta) \hat{i}+(\cos \theta) \hat{j}\) is perpendicular to the vector \(\vec{b}=\hat{i}-\sqrt{3} \hat{j}\) then \(\theta\) is equal to:

A galvanic cell converts:

Haloalkanes can be represented by the formula

A random variable X has the following probability distribution

X	0	1	2	3	4	5
P(X)	0.1	k	0.2	2k	0.3	k

Then \(P(X<3)\) is

If \(A\) is non-singular square matrix of order 3 and \(\left|A^{-1}\right|=24\), then the value of \(|2 A(\operatorname{adj}(3 A))|\), is