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What are anionic detergents? Give an example.

Answer: Anionic detergent is a synthetic detergent in which a lipophilic hydrocarbon group of the molecule is an anion. A detergent molecule... View Article

What is venation? Give its types.

Answer: The process of vein formation on the leaf is known as venation. The two types of venation are Reticulate venation Parallel... View Article

Producer gas is a mixture of (1) CO + H2 (2) H2 + CH4 (3) CO + N2 + H2 (4) CO + H2O

Answer: (3) CO + N2 + H2 Unlike natural gas, producer gas is fuel gas that is made from material such as coal. A combustible mixture of... View Article

The refractive index of water with respect to air is 1.33. The refractive index of air with respect to water will be(1) 0.25(2) 0.50(3) 1.00(4) 0.75

Answer: (4) Refractive index is defined as the ratio of the speed of light in a vacuum to its speed in a specific medium. Given parameter The... View Article

Write the molecular formula of novestrol.

Answer: The molecular formula of novestrol is C20H24O2. Novestrol is also known as Ethinylestradiol it is an estrogen drug which is commonly... View Article

In a simple pendulum experiment for determination of acceleration due to gravity (g), time taken for 20 oscillations is measured by using a watch of 1 second least count. The mean value of time taken comes out to be 30s. The length of pendulum is measured by using a meter scale of least count 1mm and the value obtained is 55.0cm. The percentage error in the determination of g is close to (1) 0.7%(2) 0.2%(3) 3.5%(4) 6.8%

Answer: (4) Given parameters The formula for the acceleration due to gravity is where l = 55cm T = 30 sec/20 Δl = 1mm = 0.1cm ΔT =... View Article

Biogas is a mixture of(1) Oxygen, carbon dioxide, methane(2) Nitrogen and oxygen(3) Methane, nitrogen and hydrogen(4) None of these.

Answer:(1) Biogas is mainly methane and carbon dioxide and may have minor quantities of sulphide hydrogen, oxygen, and siloxane. Methane,... View Article

Who discovered endoplasmic reticulum?

Answer: Porter and Thompson Porter and Thompson (1945) discovered Endoplasmic Reticulum. In 1953 Porter gave the name endoplasmic reticulum.... View Article

100 million is equal to_______-

Answer: 100 million or 0.1 billion is equal to 10 crores or 1000 lakhs. In the Indian numbering system, the term lakh and crore are expressed... View Article

Bipinnaria is the larva of ——-

Answer: Mollusca Trochophore, (trochosphere) thin, translucent, free-swimming larva which is characteristic of marine annelids and most mollusc... View Article

What is the full form of MAB?

Answer: The full form of MAB is Man and the Biosphere Programme. It is an Intergovernmental research programme, initiated by UNESCO in 1971.... View Article

Which is the longest bone in human body?

Answer: The FEMUR is the longest bone inside the human body. It is the thigh bone The Smallest bone in man's body is the staples or stirrup... View Article

What is connecting link give examples of connecting link.

Answer: A connecting link between two systematic classes of species is an intermediate or transitional state. The other name of connecting... View Article

The weakest forces of interaction among all classified forces are

Answer: Gravitational force is the weakest of all forces since the value of its coupling constant is small. Due to the huge universe surrounding... View Article

The longest cell in the human body is (1)Liver cell (2) Nerve cell (3) Muscles cell (4) None of these

Answer: (2) Nerve cell Neurons or nerve cells can be up to 3 feet long. A typical neuron has a cell morphology called soma, hair-like... View Article

Which acid is present in a tomato? (1) Tartaric acid (2) Malonic acid (3) Lactic acid (4) Oxalic acid

Answer: (4)Oxalic acid Tomato contains more than 10 types of acids such as citric acid, malic acid, ascorbic acids and oxalic acid. A tomato... View Article

The ultimate source of our energy is (1) Sun (2) Plants (3) Electricity (4) Wind

Answer: (1) The sun is considered the primary energy source since it is the source of nearly all the earth's energy. Plants produce food... View Article

A train covered a certain distance at a uniform speed. If the train would have been 10 km/h faster, it would have taken 2 hours less than the scheduled time. And, if the train were slower by 10 km/h; it would have taken 3 hours more than the scheduled time. Find the distance covered by the train.

Answer: Let us consider Time is taken = t Speed = x Distance = d Time = Distance/Speed or Speed = Distance/time x = d/t d =... View Article

What are electric lines of force? State the properties of lines of force.

Electric field lines are an excellent way of visualizing electric field. Electrical lines of force can be described as a way or path, it can be... View Article

What is a vertical circular motion? Show that the motion of an object revolving in a vertical circle is non uniform in motion.

Answer: In a vertical circle, a body spins in such a way that its motion at different points is different than the body's motion is assumed to... View Article

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