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Using a suitable oxidizing agent such as acidified dichromate solution, or, acidified permanganate solution, secondary alkanols (alcohols) can be oxidized to alkanones (ketones), therefore, The oxidation of a secondary alkanol (alcohol) produces an alkanone (ketone). e.g. Oxidation of butan-2-ol (2-butanol) by acidified dichromate solution produces butan-2-one (2-butanone or butanone)

Sucrose is a dissacharide made up of two molecules of monosaccharides which are glucose and fructose.

The Molecular formula of the compound is CH\(_3\)CH\(_2\)COOCH\(_2\)CH\(_3\). The name of the compound is Ethyl propanoate. i.e it is an alkanoate or esters. It is actually a product from the reaction of propanoic acid, CH\(_3\)CH\(_2\)COOH and Ethanol, CH\(_3\)CH\(_2\)OH. Hence, the correct answer is Ester - Option B

From the graph, when you extrapolate when the temperature is @ 60 deg, Solubility = 5.5 mol/dm3 Also, when the temperature is @ 20 deg, Solubility = 4.0 mol/dm3. Difference in solubility = 5.5 - 4.0 = 1.5 mol/dm3 Recall that, solubility = amount x 1000/ volume of solvent 1.5 = n x 1000/500 n = 1.5/2 n = 0.750 mole - Option A

Zero order - A horizontal line indicates that the reaction rate is independent of the reactant concentration. The rate equation is: rate = k First order - A straight line passing through the origin signifies that the reaction rate is directly proportional to the reactant concentration. The rate equation is: rate = k[X] Second order - A curved plot indicates that the reaction rate is proportional to the square of the reactant concentration. The rate equation is: rate = k[X]2

The Molecular formula of the compound is CH\(_3\)CH\(_2\)COOCH\(_2\)CH\(_3\). The name of the compound is Ethyl propanoate. i.e it is an alkanoate or esters. It is actually a product from the reaction of propanoic acid, CH\(_3\)CH\(_2\)COOH and Ethanol, CH\(_3\)CH\(_2\)OH. Hence, the correct answer is Ester - Option B

The most formal way to adjust presidential powers in law is through an act of the National Assembly.

Butterflies use their antennae for feeling, smelling, and detecting motion: Antennae: These sensory organs are located at the top of a butterfly's head and are similar to a butterfly's nose. They help butterflies detect chemicals in the air, such as the smell of flowers or a potential mate. They also help with balance and detecting motion. Tactile setae: These are found on the head and abdomen of monarch larvae. However, the part that develops into the organ that feels is I - Option D

The diagram above is the pupa of a butterfly with parts labelled II as the Silk thread - Option A

Feature In monocots In dicots Number of parts of each flower in threes(flowers are trimerous) in fours or fives (tetramerous or pentamerous) Number of furrows or pores in pollen one three Number of cotyledons (leaves in the seed) one two Arrangement of vascular bundles in the stem scattered in concentric circles Roots are adventitious develop from the radicle Arrangement of major leaf veins parallel reticulate

In a fish, the pelvic fin rays are the bones forming the fin beneath the pelvic girdle, the pectoral fin rays are the bones forming the chest fin and the pelvic girdle are the set of bones forming the pelvis. They are used for controlling steering, balancing, and changing the direction of the fish.

The earliest known evidence of hair is whiskers on therapsids, which were mammal-like reptiles that lived around 290 million years ago. Therapsids are considered the ancestors of modern mammals. Hair is a defining biological characteristic of all mammals. However, some species have evolved to have so little hair that they appear nearly naked.

A coelom is a fluid-filled body cavity that is lined with mesodermic tissues. Coelenterates, also known as cnidarians, are acoelomates, meaning they do not have a coelom. Instead, they have a gastrovascular cavity, which is not a true body cavity. Every other animals in the options have coelum except coelenterata - Option D

unique characteristics of mammals include but not limited to ; Most young are born alive, presence of a pair of testes inside a scrotal sac outside the body of the male, Brains better developed than in other classes of animal with superior intelligence, presence of hair or fur in the skin, presence of external ears as cartilagenous funnel like pinnae etc.

The order in which organic evolution has progressed in plants is Schizophyta(prokaryotes), Thallophyta, Bryophyta, Pteridophyta, and Spermatophyta