8/18/2019 some chemistry questions

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1. Rate of reaction [NH4]+ + [NO2] => [N2] + [H2O]

2. What is the name of the compound ( 6-sided ring, carbon-oxygen double bond upper carbon nitrogen atom on theleft next to .

!. "n a reaction of 2# m$ of #.2% of H&$ 'ith #m$ of #.#)% NaOH. What is the pH*

4. What ind of meta$ is there in urease* , Ni

). What is the meta$ of the %en es disease* , &u

-. tructure of an amino acid , 'e had iso$eucine.

/. &oordination compound 0[ u(&N 2] 'hat is the o idation state and coordination num3er*

. What is the 'ea est 3ase accordin to 3ronsted 5 $aur6* ome of the compounds that 'ere i7en8acet6$amin9 a$anine9 tetra ammonium ch$oride

:. "n the reaction N2 + !H2 2NH! 'hat 'i$$ happen if 'e increase the pressure 36 reducin the 7o$ume* ,some of the ans'ers inc$uded8 [N2] increase9 [H2] increase9 the reaction 'i$$ fa7or the direct reaction (more

NH! .

1#. We 'ere i7en a se;uence of ! and 'ere as ed to determine the comp$imentar6 se;uence.One of the ans'ers 'as a comp$imentar69 ?@ the direction of it 'as ! => ) . @here 'as a$so an ans'er ofAnone of the a3o7eA.

11. @here 'as a reaction from the citric acid c6c$e (second step 'hen citrate turns to isocitrate 9 and 'e 'ereas ed 'hat is NO@ &ORRB&@ a3out that reaction. One of the ans'ers is Athe reactant is o a$ocetateA9 andthis is not correct.

12. ;uestion a3out carotene9 'hat is not correct a3out carotene. ome of the ans'ers8 3ui$t from units93ui$d from monomers9 has a co$or9 precursor of 7itamin 9 saturated ('hich isn t true .

1!. Which one of the compounds is a neurotransmitter8 acet6$cho$ine.

14. Which of the ne t compound pairs creates HC3onds* @he correct ans'er is &H!NH2 and HD.

1). Euantum num3ers8 'hich of the com3inations is not possi3$e*

1-. What ind of 3ond is not found in @F. ome of the ans'ers8 ester9 NC $6cos6$ic9 amide9 anh6dride9 hi hener 6 3ond.

1/. Which of the $ipids contains phosphate roup* ome of the ans'ers8 ceramide9 G%1 an $ioside9tri $6ceride.

1 . Which of the fo$$o'in is not concernin $6co$6sis* @hat the $6co$6sis happens in the mitochondria.

1:. What is NO@ @R?B a3out $actose* @he correct ans'er is that it contains fructose ('hich is not true .

2#. Which of the ne t pairs can create a 3u er so$ution* @here 'ere ! pairs of sa$ts9 one pair of acids (H&$and &H!&OOH and a pair of NH! and NaOH.

21. What happens 'hen 'e mo7e to the ri ht and up in the periodic ta3$e* ome of the ans'ers8 radius ande$ectrone ati7it6 increase9 radius decrease and e$ectrone ati7it6 increase.

22. "n the formation of 'hich mo$ecu$e does dieth6$ether ta e part*

2!. What is correct OR not correct (depends on the test re ardin a$deh6de. "n the ;uestion 'here it is notcorrect9 the ans'er is that a reduction of a$deh6de creates secondar6 a$coho$.

8/18/2019 some chemistry questions

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24. What is correct OR not correct a3out car3o 6$ic acid*

2). reaction of N2 + !H2 2NH!9 [NH!] = #.1%9 [N2] = 1.#%9 [H2] = 2%9 'hat is Ec*

2-. Which one of the compounds is NO@ aromatic* ome of the ans'ers8 thiophene9 p6rro$e9 p6rimidine9imadiIo$e9 pepitidine (or somethin $i e that .

2/. What is NO@ &ORBRB&@ a3out De in hemo $o3in* ome of the ans'ers8 it has 4 $i ands9 it oes redoreaction9 is connects to the su$fur of methionine in the a3sence of o 6 en.

2 . What is the $e'is structure of H&N*

2:. What is corrects OR not correct re ardin the dissociation of 'ea acid* "n the case the ;uestion isas in 'hat is NO@ correct the ans'er is that 'ea acid dissociate comp$ete$6 in so$ution.

!#. Which of the reactions has de$ta H that is de$ta Hf*

!1. What is the h63ridiIation state of 3enIene*

!2. What is not true re ardin the reaction of &2H- and &$2*

!!. Which of the compounds is $ucocortocoid* ome of the ans'ers8 cortiso$9 a$dosterone9 pro esterone.

!4. What is true re ardin 7a$inomicine* @he ans'ers are that a$$ ! characters are correct9 on$6 2 of them arecorrect9 7a$inomicine is an ionophore9 it is an anti3iotic9 it has hi h aJnit6 for potassium.

!). Which of the mo$ecu$es has a cisCtrans conK uration* @he correct ans'er is 1 2Cdich$oropropene.

!-. Which of the statements is NO@ &ORRB&@ re ardin proteins* @he ans'er is that 3eta p$eated sheet is atertiar6 structure.

!/. structure of a$7anic ce$$ is i7en De2+LDe MM +L . What happens in the cathode* @he ans'er is that+ is reduced to .

! . What is the name of a si car3on rin 9 'ith one dou3$e 3ond9 that has a meth6$ roup and an eth6$ roup