Edible portion of Mango is(1) Epicarp(2) Endocarp(3) Mesocarp(4) None of the above
Answer: (3) The mesocarp is the pericarp mid-layer between the exocarp and the endocarp. The mesocarp, in mango, is the... View Article
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In a triangle ABC , if 3 angleA = 4 angleB = 6 angleC, calculate the angle.
Answer: Given parameters In ΔABC, 3∠A = 4∠B= 6∠C Let us consider x = 3∠A = 4∠B = 6∠C x... View Article
Which of the following is not a greenhouse gas? (1) Carbon dioxide (2) Sulphur dioxide (3) Methane (4) Nitrogen
Answer: (4) A greenhouse gas is a gas that produces heat in the atmosphere as it increases. It also gets... View Article
Diffusion pressure deficit is the amount by which two solutions differ in their (1) T.P(2) O.P(3) D.P(4) W.P
Answer: (3) Diffusion Pressure Deficit (DPD) is the proportion by which the diffusion pressure varies between two solutions. This is... View Article
Write the H.C.F of the smallest composite number and the smallest prime number.
Answer: Let us consider the smallest composite number and smallest prime number Smallest composite number = 4 Smallest prime number... View Article
Blood bank in human body is(1) Spleen(2) Lungs(3) Heart(4) Liver
Answer: (1) Spleen is known as a blood bank in the human body. Spleen important for blood purification and urgent... View Article
A solution of a substance ‘X’ is used for white washing.(1) Name the substance ‘X’ and write its formula.(2) Write the reaction of the substance ‘X’ named in (1) above with water.
Answer: (1) The solution of the substance used for whitewashing is calcium oxide also called quicklime with chemical formula CaO.... View Article
Define absorptive and holozoic nutrition
Answer: Absorptive Nutrition – A type of nutrition in which an organism obtains its food through absorption. It is a... View Article
Define stopping potential (cut-off potential) with reference to photoelectric effect.
Answer: Stopping potential or cut-off potential is defined as the required potential for stopping the removal of an electron from... View Article
Second and third most abundant metal in earth’s crust(1) Aluminum, Calcium(2) Iron, Silver(3) Iron, Calcium(4) None
Answer: (3) The most abundant metals are 8.1% of aluminium, 5.0% of iron and 3.6% of calcium, followed closely by... View Article
Prove that : 4-5 square root of 3 is irrational.
Answer: Let us assume 4 – 5√3 be a rational number. ⇒ 4 – 5√3 = a/b Where a, b... View Article
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... 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... 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 Explanation Unlike natural gas, producer gas is fuel gas that is made from... 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... 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... 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 \(\begin{array}{l}g = frac{4pi ^{2}l}{T^{2}}\end{array} \) where l... 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. Endoplasmic... 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... View Article
