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How Is Iron Extracted From Haematite?

Iron is extracted from haematite (Fe2O3) in a blast furnace. In a blast furnace, the ore is led into the top of the furnace along with coke and... View Article

Compare Resistance And Reactance.

Resistance And Reactance - Comparison: Resistance Reactance Resistance is denoted by R Reactance is denoted by X Resistance, R =... View Article

Who Was The Founder Of The Satavahana Dynasty?

King Simuka, the first king and the founder of the Satavahana dynasty. The name Satavahanas referred to as the Andhras in the Puranas, were an... View Article

What Is Tyndall Effect?

The Tyndall effect is the phenomenon in which the particles in a colloid scatter the beams of light that are directed at them. This effect is... View Article

What Is Meant By Oxime. Give An Example Of A Reaction With Mechanism Showing Its Formation.

Oxime refers to a chemical compound belonging to the imines, with the general formula RR1C = NOH, where R is an organic side-chain. Here is an... View Article

The M Value Not Possible For A Double Dumbbell Shaped Orbital Is (A) 0.(B) -1.(C) -2.(D) +3.

The correct answer is (D) +3. Explore more such questions and answers at BYJU’S.... View Article

The Second Whorl Of A Flower Is Called_______.(A) Petals. (B) Sepals. (C) Carpels. (D) Stamens.

The correct answer is (A) Petals. The outer whorl of a flower is called calyx, which consists of the sepals. The second whorl of a flower is... View Article

Effective Filtration Pressure In The Glomerulus In Kidney Of Man Is About: (A) +50 mm Hg. (B) +75 mm Hg. (C) +80 mm Hg. (D) 10 to 25 mm Hg

The correct answer is (D) 10 to 25 mm Hg Effective filtration pressure (EFP) refers to the net driving forces for water and solute transport... View Article

Prepaid Expenses Is Shown Under _______ Side Of Balance Side.

The answer is Asset. Prepaid expenses are shown under the asset side of the balance side. The amount of prepaid expenses that will be used up... View Article

What Is The Numerical Coefficient Of Each Of The Following: (i)xy (ii)-6yz (iii)7abc (iv)-2x3y2z

Sol: (i) x y The numerical coefficient in the term x y is 1. (ii) -6 y z The numerical coefficient in the term -6 y z is -6. (iii) 7 a b c... View Article

How Is The Surgical Removal Of Unwanted Pregnancies Misused?

This surgical process can be used by people in order to remove unwanted pregnancies. In some cases, this surgical process is misused by people... View Article

Through A Point A On The X−axis A Straight Line Is Drawn Parallel To Y−axis So As To Meet The Pair Of Straight Lines Ax2 + 2hxy + By2 =0 In B And C. If Ab=Bc, Then:

Sol: Since the equation of the pair of lines does not have a constant term, we can safely assume that both lines pass through the origin. Let... View Article

The Average Age Of A Class Is 15.8 Years. The Average Age Of The Boys In The Class Is 16.4 Years While That Of The Girls Is 15.4 Years. What Is The Ratio Of Boys To Girls In The Class?

Let the number of boys in the class be x. Let the number of girls in the class be y. Total age of the class=15.8 * (x + y) = (15.8x + 15.8y)... View Article

What Is The Role Of Oral Contraceptive Pills In Preventing Conception.

The oral contraceptive pills contain hormones, which helps in preventing the release of the ovum. Therefore, the fertilizatiom cannot occur.... View Article

Hybridisation Of The Carbon Atom Of Carbonyl Group Is (A) sp. (B) sp2.(C) sp3.(D) sp3d2.

The correct answer is (A) sp. Explore more such questions and answers at BYJU’S.... View Article

An Oxide Of A Metal (M) Contains 40% By Mass Of Oxygen. Metal (M) Has Atomic Mass Of 24.The Empirical Formula Of The Oxide Is :(A) MO.(B) M2O. (C) M2O3. (D) M3O4.

The correct answer is (A) MO. An oxide of a metal (M) contains 40 % by mass of oxygen. 100 g of the oxide will contain 60 g of metal and 40 g... View Article

The Height Of An Equilateral Triangle Of Side A Is Given By:(A) a Sqrt 2 / 2.(B) a Sqrt 2 / 3.(C) a Sqrt 3 / 2.(D) a Sqrt 3 / 4.

Sol: The correct answer is (C) Area of equilateral triangle = Area = * base * height * a * height Thus a * height Therefore, height... View Article

A Sphere Of A Diameter Of 0.05 M Is Charged To A Potential Of 1000 Volts. Calculate The Outward Pull Per Unit Area

Sol: The charge on the sphere is q = Vr = Surface charge density = Therefore, the outward pull per unit area is Explore... View Article

Shanta Runs An Industry In A Shed That Was In The Shape Of A Cuboid Surmounted By a Half-Cylinder. If The Base Of The Shed Is 7 M X 15 M And the Height Of The Cuboidal Portion Is 8 M, Find The Volume Of The Air That The Shed Can Hold. If The Industry Requires Machinery Which Would Occupy A Total Space Of 300 M3 And There Are 20 Workers Each Of Whom Would Occupy 0.08 M3 Space On An Average, How Much Air Would Be In The Shed When It Is Working

Sol: The volume of air inside the shed is equal to the volume of air inside the cuboid and inside the half-cylinder taken together Given:... View Article

Court : Justice :: School : _____. (A) Student.(B) Teacher.(C) Education.(D) None Of These.

The correct answer is (C) Education. Court: Justice:: School: Education. Explore more such questions and answers at BYJU’S.... View Article

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