D. 0,2 mol CjHfi, 0,3 mol H2.
2. De dot chay hoan toan h6n hpp X cAn V lit kh6ng khi (d dktc). Biei
oxi chiem 20% th^ tieh khSng khị Gia tri cua V la
Ạ 92,4. B. 86,5.
C. 89,6. D. 78,9.
2. Kh6ng mui;
4. Tan ft trong nudẹ
7. Oxi hoa hoan toan (chay);
2. rU L U A N (5 DIEM)
Cho 3,6 lit (a dktc) h6n hpp g6m metan va etilen v^o binh dung dung dich brom du, thu dupe 3,76 gam dibrometan. dich brom du, thu dupe 3,76 gam dibrometan.
a) Viet phuong trinh hoa hpc.
b) Tinh khd'i lupng brom da phan ling.
c) Tinh thanh phan % th^ tich m6i khi trong h5n hpp daụ
De so 1.8
1. T R A C NGHIEM K H A C H Q U A N (6 DIEM)
Cau 1 (1,0 diem)
Tinh chát dac trung ciia etilen la: 1. Chát khi khong mau; 1. Chát khi khong mau;
3. Nang hon kh6ng khi;
Tham gia cac phan ung:
5. C6ng hpp; 6. Phan huy;
8. Trung hpp; 9. Thẹ
Nhung tinh chat neu sai la Ạ 2, 5, 9. Ạ 2, 5, 9.
C. 3, 6, 9.
Cau 2 (1,0 diem)
Tinh chat dac trung ciia axetilen:
1. Chat khi kh6ng mau; 3. Nhe hon kh6ng khi; 3. Nhe hon kh6ng khi; Tham gia cac phan ling: 5. Cong hpp;
7. Thé;
NhiJng tinh chát nfiu sai la Ạ 1, 4, 6, 8. Ạ 1, 4, 6, 8.
C. 3, 5, 7.
Cau 3 (2,0 diem)
D6't chay hoan toan m gam h6n hpp CH4, C2H4 va QHj, thu dupe 17,6 gam
^ 2 va 10,8 gam H2Ọ Gia tri cua m la
Ạ 2. - B.4.
C.3. D.6.
B. 1,4, 6,8. D. 4, 7, 8, 9. D. 4, 7, 8, 9.
2. Co mui dac trung; 4. Tan t6't trong nudrc. 4. Tan t6't trong nudrc. 6. Chay;
8. Trung hpp.
B. 2, 5, 6, 7. D. 2, 4, 8. D. 2, 4, 8.
Cau 4 (2,0 diem)
D6t chay hoan loan 5,6 lit etilen (of dktc) c^n V lit kh6ng khị Biét rkng
oxi chiém 20% the tich kh6ng khị Gia tri cua V la Ạ 72. • B. 84.
C . 92. D. 78.
2. TlJ LUAN (4 DIEM)
dilu ché 5,1617 lit axetilen (d dktc), hieu suát phan ling la 95%, ca,
m gam canxi cacbua chiia 10% tap chát. a) Tinh gia tri cua m.
b) Tinh kh6'i lugng CăOH)2 dugc tao thanh.
, D e s 6 l.9
1. TRAC NGHIEM KHACH QUAN (5,5 DIEM) Cau 1(1,0 diem) Cau 1(1,0 diem)
Chon cau sai trong cac cau sau:
Ạ Rugu etylic la chát long kh6ng mau, s6i of 78,3"C, tan v6 han trong nu6c.
B. Axit axetic la chát long khong mau, c6 vi chua, tan v6 han trong nu6c.