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$\mathrm{K}_{2} \mathrm{CrO}_{1}$ givcs a ycllow precipitare on rcaction with: (a) $C_{4}^{2}$ (b) $\mathrm{Fe}^{3}$ (c) $\mathrm{Ba}^{2}$ (d) $\mathrm{Pb}^{2}$

Hello and welcome to this video solution of numerous. Here we are given a link comprehension. So here in statement one were given that and iron or a on roasting with sodium carbonate and lying in the presence of air gives to compound PNC. And you're from option the second part the solution be in concentrated. It's alan reaction with production furrows and it gives a blue color on precipitated of compound their cost solution of C. On treatment with considerate statistical gives a yellow colored compound E. And the compound even treat it with a seal gives an orange red compound F. Which is used as an ox raise anything. So you have to make certain predictions to come into the solution. So let me show you how it's made. So first of all we take for if he oh she had to poetry thus eight and a two freedom global neck And with air that is given seven or 2 good line gives you to a free two or three that's eight the name so Seattle four. That's it. It's a frustration. Next we have if we two or three reacting with concentrate sales that is given gives you who official three Last three H 2. Right now this official tree reacts with who before if he 10 6 that is protection fellow sign a great this gives you the blue solution pushing blue solution of if the four if he CN six whole trade plus 12 cases. Mm Next From three we have two any he wanted to see our well for That's 8/10 of food gives you we need to the odd 47 is the yellow color solution. Greatness in A. Two so four. That's it too. No you have in A to see our two or seven. Okay, last case here is the orange color substance of people pr two or seven that's 2010. So this is the so let us state what is A what is B. The first we have me is If you see a 23, this is a Next we have every two or 3 SCB or Yes. So this suits also be ready And in in 204 this is C. Right BNC. That is mentioned. Yes. Now this pushing blue books. Mhm. Yeah. Yeah. Whoa it is. Mhm. Okay. To see again this election with the this one your local er this is E and we have orange. What are some common? It does if Yeah. Right. I hope this is clear to you and have a very good rest of the day. Thank you.

As for the question we have been given a fill in the bland's for hormone target glands and the first one is hypothalamic hormones, hypothalamic hormones. The target land is that would trigger land. Then we have the second one title trough in day at all. Drop in that this D. S. Hatch. And the target land is thyroid land. From the name itself. We can understand that thyroid gland then comes the third one. And that is gonna drop ins sorry to ask article drop ins Article two of them on a C. D. Patch. Now the target Glantz is adrenal gland or adrenal cortex. None of The 4th 1 is gonadotropin and they are alleged an FSH. The target land is testes and ovaries. Then we have the last one Melania trough in Madonna trough in that is M. S. Hatch. The target Landers, pigment cells of the dermis of skin. Yeah I hope the concept is clear to you. Thank you.

The question is which one of following will produce hard water? Yeah. Which produces hard work. We're here. The CSU trian McCoo tree, The AC 03 and IMDC 03, our water insoluble. Hence it cannot produce hard water stops and a n c. R. He could have, but once, yeah, so food is added. Then it produces The year two plus in which is responsible for water hardness. And so obstinately is correct.

We're trying to find the angle state of between vectors U and V. We can start out by knowing that co sign of data is equal to you dot v over absolute value of you dot Absar value v magnitude. And we can first start by working on what you dot visas. And if we already know you envy, we can just start right away with one that'll Kirby there one dot for plus two o plus negative to negative three and that is four plus zero plus 6 +74 and six would be 10. Next step we have our magnitude of you is equal to root of one squared plus two squared plus negative two squared just going to be able to 48 and nine and Route nine is equal to three. Then we have or absolute value the which is going to be four squared. We can ignore zero plus a negative three squared. Yes, we have 16 and nine, which is route 25. Nice clean numbers here That's equal to five. So now we know that co sign of data is equal to 10/3 times five and then we can know that data is equal to inverse co sign of 10/15 and 10/15 is the same as to over three, and then the inverse co sign of two of her three as a decree would be 48.19 degrees.