QUES: Uranium metal reacts with almost all non-metal elements (with an exception of the noble gases) and their compounds, with reactivity increasing with temperature. Hydrochloric and nitric acids dissolve uranium, but non-oxidizing acids other than hydrochloric acid attack the element very slowly. When finely divided, it can react with cold water; in air, uranium metal becomes coated with a dark layer of uranium oxide. Uranium in ores is extracted chemically and converted into uranium dioxide or other chemical forms usable in industry.

What reacts with finely multiplied uranium?
What is the answer?
ANS: unanswerable
QUES: The late Georgian period saw the birth of the semi-detached house, planned systematically, as a suburban compromise between the terraced houses of the city and the detached "villas" further out, where land was cheaper. There had been occasional examples in town centres going back to medieval times. Most early suburban examples are large, and in what are now the outer fringes of Central London, but were then in areas being built up for the first time. Blackheath, Chalk Farm and St John's Wood are among the areas contesting being the original home of the semi. Sir John Summerson gave primacy to the Eyre Estate of St John's Wood. A plan for this exists dated 1794, where "the whole development consists of pairs of semi-detached houses, So far as I know, this is the first recorded scheme of the kind". In fact the French Wars put an end to this scheme, but when the development was finally built it retained the semi-detached form, "a revolution of striking significance and far-reaching effect".

What put an end to the scheme of semi-detached houses?
What is the answer?
ANS: the French Wars
QUES: During Vatican II, the Council Fathers avoided statements which might anger Christians of other faiths.[page needed] Cardinal Augustin Bea, the President of the Christian Unity Secretariat, always had the full support of Paul VI in his attempts to ensure that the Council language was friendly and open to the sensitivities of Protestant and Orthodox Churches, whom he had invited to all sessions at the request of Pope John XXIII. Bea also was strongly involved in the passage of Nostra aetate, which regulates the Church's relations with the Jewish faith and members of other religions.[d]

Who insisted that Protestant and Orthodox Christians be invited to all Counsel meetings?
What is the answer?
ANS:
Pope John XXIII