Cho dung dịch (riêng biệt) các chất sau: axeton; axit acrylic; axit axetic; vinyl axetat, saccarozơ, glucozơ, fructozơ, etyl fomat, o-crezol, axit fomic, but-3-en-1,2-điol và anđehit axetic. Số dung dịch vừa mất màu dung dịch nước brom, vừa phản ứng với Cu(OH)₂ ở nhiệt độ thường là:

A. 3

B. 5

C. 4

D. 6

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Question 6: My responsibility is to wash the dishes and take ______ the garbage every day.

A. up

B. in

C. on

D. out

Trong thí nghiệm nào sau đây xảy ra ăn mòn điện hóa?

A. Cho lá đồng nguyên chất vào dung dịch gồm Fe(NO₃)₃ và HNO₃.

B. Để thanh thép đã sơn kín trong không khí khô.

C. Nhúng thanh kẽm nguyên chất vào dung dịch HCl.

D. Cho lá sắt nguyên chất vào dung dịch gồm CuSO₄ và H₂SO₄ loãng.

BÁO CÁO THỰC HÀNH

Cho hình vẽ bên mô tả thí nghiệm điều chế khí Y từ dung dịch X. Hình vẽ minh họa phản ứng nào sau đây?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

        Welcome to the Netherlands, a tiny country that only extends, at its broadest, 312 km north to south, and 264 km east to west - (23) _________ the land area increases slightly each year as a result of continuous land reclamation and drainage. With a lot of heart and much to offer, ‘Holland,’ as it is (24) _________ known to most of us abroad - a name stemming from its once most prominent provinces - has more going on per kilometer than most countries, and more English-speaking natives. You’ll be impressed by its (25) _________ cities and charmed by its countryside and villages, full of contrasts. From the exciting variety on offer, you could choose a romantic canal boat tour in Amsterdam, a Royal Tour by coach in The Hague, or a hydrofoil tour around the biggest harbour in the world - Rotterdam. In season you could visit the dazzling bulb fields, enjoy a full day on a boat, or take a bike tour through the pancake-flat countryside spiced with windmills. The possibilities are countless and the nationwide tourist office is on hand to give you information and help you (26) _________ reservations. You’ll have (27) _________ language problems here, as the Dutch are true linguists and English is spoken here almost universally.

Điền vào số (24)

A. regularly

B. occasionally      

C. commonly        

D. unusually

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Not only _____________ to determine the depth of the ocean floor, but it is also used to locate oil.

A. seismology is used

B. using seismology

C. is seismology used      

D. to use seismology

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Does television adequately reflect the ethnic and cultural _____________ of the country.

A. custom

B. diversity

C. alternation

D. minority

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