Find the multiplicative inverse of (81/16)^(-3/4)?
Answer: The multiplicative inverse also known as reciprocal implies is something which is opposite. The reciprocal number obtained in such... View Article
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The pair of ions having same electronic configuration is __________. (1) Cr3+ , Fe3+ (2) Fe3+ , Mn2+ (3) Fe3+ , Co3+ (4) Sc3+ , Cr3+
Answer: Fe3+ and Mn2+ The valence shell electronic configuration of the given atom and their corresponding ions are Fe3+ (Z=26)... View Article
What is the condition for an Electromagnetic Induction?
Answer: Electromagnetic Induction is a current generated due to a changing magnetic field due to the creation of voltage. The... View Article
(3x + 4) (3x-5) how to do it by using identities?
Answer: Given (3x + 4) (3x – 5) 3x (3x – 5) + 4 (3x – 5) (3x )² –... View Article
The system that forms maximum boiling azeotrope is (1) carbon disulphide – acetone (2) benzene – toluene (3) acetone – chloroform (4) n-hexane – n-heptane
Answer: (3) acetone – chloroform An azeotrope is a mixture that boils at a constant temperature known as the azeotropic... View Article
Write examples of particles of matter have space between them.
Answer: There are tiny voids in the matter between each particle. The theory behind the solubility of a substance in... View Article
Is the product of a rational and irrational number always irrational give an example?
Answer: Rational and Irrational numbers both are real numbers but different with respect to their properties. Rational numbers are the... View Article
What chemical is used to make raincoat?
Answer: Synthetic fibres are made only from polymers found in natural gas and the by-products of petroleum. They include nylon,... View Article
Woody plants carry gaseous exchange through (1) root hair (2) stem hair (3) lenticels (4) epidermal cells
Answer: (3) lenticels Plants use oxygen to respire, and release carbon dioxide by the process in exchange. In comparison to... View Article
A positively charged body has _______ of electrons.
Answer: A body that has the same number of positively charged protons and negatively charged electrons is normally neutral. Positive... View Article
The most reliable estimate is _____?
Answer: The Detailed Estimation is the most reliable estimation. The Estimate implies a rough estimate of the costs that are... View Article
Find the square root of 8281 by prime factorization.
Answer: 91 By prime factorization method 8281 can be written as 8281 = 91 × 91 8281 = 912 Taking... View Article
Write any three rational numbers.
Answer: In mathematics, a rational number is a type of real numbers. It can be defined as any number that... View Article
Spermology is the study of (1) Seed (2) Leaf (3) Fruit (4) Pollen grain
Answer: (1) Seed The investigation of various forms of plant seeds is recognized as spermology in botany. It covers the... View Article
Name the parameters that characterize a unit cell.
Answer: Unit cell is a portion of crystal lattice which on repetition leads to crystal structure. It has all the... View Article
Find the probability of getting 53 Friday in a leap year?
Answer: 2/7 Number of days in leap year = 366 days These 366 days are 52 weeks and 2 days... View Article
What is gootee in plants?
Answer: Air layering is a vegetative method of plant propagation, also named as marcotting, pot layerage, marcottage, gootee and circumposition... View Article
Write a note on water harvesting.
Answer: All living things require water to survive and to conduct various cellular functions, like plants, animals and humans. Rainwater... View Article
Difference between aquaculture and pisciculture.
Answer: The main difference between aquaculture and pisciculture is that aquaculture involves the rearing and culture of all aquatic organisms... View Article
How many terms of the A.P. 9, 17, 25, . . . must be taken so that their sum is 636?
Answer: n = 12 Given AP is 9, 17, 25,… We know that, Sn = n/2[2a + (n − 1)d]... View Article
