The strongest oxidising and reducing agents respectively are :

"Arrange the following in decreasing order of basic strength:
(A)\(\text{C}_6\text{H}_5\text{NH}_2\)
(B) \(\text{C}_6\text{H}_5\text{N(CH}_3\text{)}_2\)
(C) \((\text{C}_2\text{H}_5\text{)}_2\text{NH}\)
(D) \(\text{CH}_3\text{NH}_2\)
Choose the correct answer from the options given below:"

\(\text{[NiCl}_2\text{(PPh}_3)_2\text{]}\) is named as :

Which of following reagents will furnish ambident nucleophile?
(A) AgCN
(B) KCN
(C) AgNO2
(D) KNO2
Choose the correct answer from the options given below :

The mass percentage of a component of a solution is defined as:

Match List - I with List - II.

List – I	List – II
(A) Polyvinyl chloride	(I) Phenol formaldehyde
(B) Urea-formaldehyde	(II) Ethyleneglycol and phthalic acid
(C) Glyptal	(III) Vinyl chloride
(D) Bakelite	(IV) Urea-formaldehyde

Choose the correct answer from the options given below :

The rate of a chemical reaction doubled for every \(10^{\circ} C\) rise in temperature. If the temperature is raised by \(50^{\circ} C\), the rate of reactions will be

The maximum value of \(Z=3 x+4 y\) subject to constraint \(x+y \leq 6, x, y \geq 0\) is:

Acetaldehyde and benzaldehyde can be best distinguished by

If the integral \(I=\int\left\{\log _e\left(\log _e x\right)^2+\frac{\alpha}{\log _e x}\right\} d x=x \log _e\left(\log _e x\right)^2+C\), where \(C\) is constant of integration. Then the value of \(\alpha\) is :

Read the following passage carefully and answer the given questions.
Productivity in the Ecosystem
The flow of energy through a terrestrial ecosystem starts with the harnessing of sunlight by autotrophs. The radiant energy is converted by photosynthesis to organic compounds is known as productivity. The productivity is expressed in units of energy per unit of area per unit time. The amount of organic matter present at any given time is biomass. The productivity of any ecosystem is affected by many parameters like weather conditions, nutrient availability etc. The productivity of any ecosystem does vary seasonally and yearly.
The amount of organic matter accumulated in an ecosystem at a given time is known as-

A cone, whose height is always equal to its diameter, is increasing in volume at the rate of \(40 cm^3 / sec\). The rate at which radius is increasing when circular base area is \(1 m^2\) is :

Read the passage carefully and answer the following questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the \(C - OH\) bond and the O-H bond along with the reactions involving the complete - COOH group.
Which of the following compounds will give butanone on oxidation with chromic anhydride (CrO3)?