问题 多选题

将铁片放入下列溶液中充分反应后,溶液的质量比反应前增加的是(  )

A.硫酸铜溶液

B.硫酸溶液

C.硫酸亚铁溶液

D.稀盐酸

答案

A、把铁片放入CuSO4溶液中,生成FeSO4溶液,且每反应一个铁原子则置换出一个铜原子,也就是质量56份的铁原子会置换出64份质量的铜原子,故溶液质量减少,故A错;

B、铁与硫酸溶液反应后,生成硫酸亚铁溶液,且每反应一个铁原子则置换出一个氢分子,也就是质量56份的铁原子会置换出2份质量的氢分子,故溶液质量增加.故B正确;

C、铁与硫酸亚铁溶液不反应,溶液质量不变,故C错;

D、铁与稀盐酸反应后,生成氯化亚铁溶液,且每反应一个铁原子则置换出一个氢分子,也就是质量56份的铁原子会置换出2份质量的氢分子,故溶液质量增加.故D正确;

故选BD.

阅读理解

C

On May 7, 2001, Ronnie Biggs arrived in Britain for the first time in about thirty-five years. His return was the end of one of Britain's most famous crime stories, The Great Train Robbery. In 1963 Biggs was in a gang that stole £2.6 million from a train traveling between London and Glasgow. The gang was caught quickly, and Biggs was sentenced to thirty years in jail. Many people thought that the sentence was too harsh(严厉的). Biggs also thought it was too harsh, so he decided to escape.

Biggs was sent to Wandsworth Prison, a maximum security jail. It had one very high wall to keep the prisoners in, and some guards to watch them. One afternoon in July 1965, Biggs was in the prison yard. He had been in jail for just fifteen months. A tall van(货车) stopped outside the jail, and a ladder was placed against the wall. Then a rope ladder was thrown over the wall into the prison yard. Biggs climbed up the rope ladder, jumped down into the van and escaped!

From that time on, Biggs lived on the run. After hiding in France, Spain and Australia, he finally settled in Brazil in 1970. He was a celebrity(名人) criminal. He appeared in rock videos and movies, and he sold souvenirs to tourists who came to see him. But he missed his home in Britain and, at the age of seventy-one, decided to go home. He was met at the airport by family, friends—and police.

61. Ronnie Biggs was sentenced to thirty years in jail because ________.

62. What kind of prison was Ronnie Biggs in?

63. The main idea of Paragraph 2 is ________.

64. How many countries had Ronnie Biggs been to after he escaped from Britain?

65. When was Ronnie Biggs born?

单项选择题 A1/A2型题