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NO3- , CO32- , and SO3 are isoelectronic but only first two are isostructural. WHY??? EXPLAIN......
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EXPERTS PLEASE REPLY...........
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2- Bromo-2-methyl-propane gives two different products with 1. CH3CH2ONa in presence of CH3CH2OH and 2. CH3CH2OH alone. WHAT R THESE PRODUCTS AND WHY ARE THEY DIFFERENT WHEN THEY BOTH PRODUCE SAME ANION i.e. CH3CH2O- ?
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I want question no. 19 in chapter 34 of HC Verma to be solved......
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What is the "L" in FBL sin theta stand for ? IS IT DISPLACEMENT IN CASE OF CURVED STRAIGHT LINE?? bCOZ IN CASE OF SEMICIRCULAR WIRE WE GET THE ANSWER ONLY WHEN WE TAKE DIAMETER AS L. {IN H.C. VERMA}
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What abt Experts.,......??In fact I have also saw this question.......
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A thin uniform metallic triangular sheet of mass M has sides AB=BC=L . What is its moment of inertia abt AC lying in the plane of the sheet? The triangle is a right triangle with AB and BC as sides and AC as hypotenuse.
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What is the meaning of angle in [ pie, -pie] ?? Does it mean that the angle can be in all the 4 quadrants??
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It is given in TMH that The work done by a body does not depend upon: The mass of the body . Initial velocity of the body. How is it possible as mass is contained in force and velocity in KE { WD = Change in KE, WD = F.d }
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When we dilute an acidic solution, the no. of H+ ions increases and thus the pH should decrease but it is not so as the solution has got diluted . WHY???
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"So we need two wires to get the current flowing and it is a natural deduction to state that the amount of current flowing down the live wire has to be exactly the same amount of current flowing back down the neutral wire. "but pls. tell if the current flows back to the sourse from the electrical appliance(say bulb), then how can the bulb light up without using current?????????
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I STILL NEED MORE CLARIFICATIION ABT HOW THE CURRENT TRAVELS IN THE RED AND BLACK WIRES.................
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WHAT IS MEANT BY POSITIVE AND NEGATIVE VOLTAGE IN AC???? (VOLTAGE IS VOLTAGE, WHAT DOES IT MAKE MEAN THAT ONE IS +VE AND THE OTHER IS -VE????) ARE THE SIGNS JUST AN CONVENTION????? AND HOW CAN ELECTRONS TRAVEL WHEN THE DIRECTION OF THEIR FLOW IS BEING REVERSED AFTER EVERY 1/100th SECOND??
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now as we know, there are generally 2 wires(a black one and the other red one), why are two of them needed??What does their colour signify?pls. don't say tht it is" to complete the circuit!", give me an explination.......
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@resistance is just a hurdle it doesnt eats up the current .....(means conservation of charge has to be obeyed).......dat is ...current goes constant in same wire line///whn it has been said tht resistance eats up current, then isn't it contradiction???
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Sir, regarding your answer pls. explain how do the electrons know that they have to complete the circuit??
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why do electrons need to travel along the circuit when they can simply reach the +ve potential (plate) by travelling inside the battery too??
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but then if resistance decreases current then why do we say that the current passing through series resistance is constant?????
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