B a i 27: Dot chay (CH3COO)2Ca t h u dtfoc san pham gom CO2, H2O va mot chat rSn. Chat r a n do la:
Ạ C a C O a B. Ca(HC03)2 C. CaO D. Ca
B a i 28: Cho hflu hop cac chat hOfu co don chufc c6 cong thufc phan tijf
C2H4O2 tac dung het vdi N a O H thu daoc h6n hop cac chat hOfu co Ỵ Y gom c6:
Ạ CHsONa, CHgCOONa, HCOONa B. CH3OH, CH3COOH, H C O O H C. CHsCOONa, CH3OH
D. CH3OH, CHsCOONa, HCOONa
B a i 29: Xa phong hoa hoan toan 8,86gam chat beo X can dung 62ml dung dich K O H 0,5M t h u di/gtc muoi k a l i cua cac axit beo va 0,92gam
glixerol. C h i so xa phong va chi so axit cua chat beo X Ian luat la:
Ạ 200 va 6,45 B. 200 va 193,45 C. 196 va 8,4 D. 198,8 va 5,6.
B a i 30: Cho cac chat sau:
1. H 2 N - C H 2- C O O H 2. H C O O H 3. H O O C-(CH2)2- C H(NH2) - C O O H 4. H 2 N - ( C H 2) 4- C H( N H 2) - C O O H 5. CH3CH(NH2)COOH 4. H 2 N - ( C H 2) 4- C H( N H 2) - C O O H 5. CH3CH(NH2)COOH
So chat l a m doi mau quy t i m am la:
Ạ 2 B. 3 C. 5 D. 4
B a i 31: L y s i n : H 2 N - ( C H 2) 4- C H( N H 2) - C O O H . Cho m gam lysin phan
iJng vdi dung dich chOfa 0,2mol N a O H t h u d\Xac dung dich X, dung dich
X phan ling vCra du v d i dung dich chura 0,4mol H C l . Gia t r i m 1^: Ạ 13,2gam B. 29,2gam C. 14,2gam D. 14,6gam
B a i 32: Cac amin the hien daac t i n h bazo la do amin c6: Ạ K h a nang thuy phan tao O H "
B. Nguyen tijf N c6 do am dien Idn
C. K h a nang phan ufng vdi axit tao muoi
D. Nguyen tuf N con doi electron chaa t h a m gia l i e n ket.
B a i 33: Dot chay hoan toan cacbohidrat X bling mot luang oxi vCra du n h a n thay nô: n^o,: n^^^o = 1 : 1 : 1- X c6 kha nSng l a m m a t m^u
nifdc brom. Vay X c6 the la cacbohidrat nao trong so cac chat saủ Ạ Glucozo B. Fructozd C. Saccarozd D. Mantozd.
B a i 34: Cho cac polime sau: cao su isopren, PVC, c a o su b u n a - N , to
capron, poli(phenol-fomandehit), nilon-6,6. So polime dUdc dieu che bang phan uTng t r u n g hop, t r u n g ngiTng, dong t r u n g hop Ian lugt l a : Ạ 4,2,1 B. 2,3,2 C. 2,3,1 D. 3,2,1
B a i 35: X la este cua a - a m i n o a x i t Y va ancol etylic. Dot chay hoan toan 20,6gam X t h u duoc 35,2gam CO2, 16,2gam H2O va 2,24 l i t N2 (dkc). Cong thufc cau tao t h u gon cua X la:
Ạ H2N-(CH2)2-COO-C2H5 B. HzN-CHCCHsKCOOH
C. H2N-CH2-COO-C2H5 D. H2N-CH(CH3)-COO-C2H5 B a i 36: Cho h6n hgfp X gom 2 chat hGu ca phan ufng vdi K O H vCra du, B a i 36: Cho h6n hgfp X gom 2 chat hGu ca phan ufng vdi K O H vCra du,
can dung 500ml dung dich K O H I M . Sau phan ufng thu hon hop 2 muoi cua 2 axit no, don va 1 ancol no, don Ỵ Cho Y tac dung het vdi Na duoc 3,36 l i t H2 (dktc). Cho biet 2 chat hufu ccf t r e n la hop chat gỉ
Ạ 1 axit + 1 ancol B. 1 este +1 axit C. 1 este + 1 ancol D. 2 estẹ
B a i 37: Chat huTu co X chi chufa 1 loai nhom chufc tac dung vdi 1 l i t dung
dich N a O H 0,5M t h u daoc muoi va O,lmol m p t ancol. De t r u n g hô
li/ong N a O H du can dung 0,5 l i t dung dich H C l 0,4M. Vay X co cong thufc dang
Ạ R - C O O - R ' B. (R-C00)3R' C. (R-C00)2R' D. R( C 0 0- R ' ) 3 . B a i 38: Cho hon hop etyl isobutylrat, axit 2-metylpropanoic, metyl
butanoat phan ufng vCra du vdi 200ml dung dich h5n hop N a O H 0,05M va K O H 0,1M. K h o i luang muoi thu diTOc sau phan ufng la:
Ạ 3,54gam B. 3,62gam C. 3,78gam D. 3,3gam.
B a i 39: Cho so do sau: X + N a O H - ^ Y + Z
Z + H2 C2H5OH
Z + Cu(0H)2 + N a O H Y + Cu20i + H2O
Vay X CO cong thufc phan tuf la
Ạ C4H6O3 B. C5H8O2 C. C4H8O2 D. C4H6O2.
a i 40: Cho day cac chat: C2H3CI, C2H4, CgHg, C2H3COOH,
H2N(CH2)5COOH. So chat trong day co kha nang t h a m gia phan dng t r u n g hop la:
IỊ P H A N R I E N G (10cau)
Thi siiih hoc thco cliiiang trlnh nao tlii chl diCgc lam phdn danh ieng cho chuang trlnh do (phdn A hoac B)
Theo chiftfng trinh Chuan (10 cdu, tii cdu 41 den cdu 50)
Bai 41: Chat xiic tac trong phan iJng thuan nghich lam
Ạ Tang toe do phan ufng thuan
B. Tang toe do phan ufng nghieh C. Tang hieu suat phan ijfng t h u a n C. Tang hieu suat phan ijfng t h u a n