⟩ Which of the following metals react violently with water to produce hydrogen gas
1. sodium
2. zinc
3. platinum
4. silver
Answer: SODIUM
Question and Answer:
Home Chemistry
- Share
Popular Answers:
* There is no answer to the above question yet.
More Questions for you:
Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai.
a) Union
b) Intersection
c) Set Difference
d) DisjointThe complement of the set A is _____________. a) A - B b) U - A c) A - U d) B - A
The difference of {1, 2, 3} and {1, 2, 5} is the set _________.
a) {1}
b) {5}
c) {3}
d) {2}The bit string for the set {2, 4, 6, 8, 10} (with universal set of natural numbers less than or equal to 10) is ____________________.
a) 0101010101
b) 1010101010
c) 1010010101
d) 0010010101Which of the following two sets are disjoint?
a) {1, 3, 5} and {1, 3, 6}
b) {1, 2, 3} and {1, 2, 3}
c) {1, 3, 5} and {2, 3, 4}
d) {1, 3, 5} and {2, 4, 6}Two sets are called disjoint if there _____________ is the empty set. a) Union b) Difference c) Intersection d) Complement
The union of the sets {1, 2, 5} and {1, 2, 6} is the set _______________.
a) {1, 2, 6, 1}
b) {1, 2, 5, 6}
c) {1, 2, 1, 2}
d) {1, 5, 6, 3}The intersection of the sets {1, 2, 5} and {1, 2, 6} is the set ___________.
a) {1, 2}
b) {5, 6}
c) {2, 5}
d) {1, 6}The function f(x)=x+1 from the set of integers to itself is onto. Is it True or False? a) True b) False
The g -1({0}) for the function g(x)= ⌊x⌋ is ________.
a) {x | 0 ≤ x < 1}
b) {x | 0 < x ≤ 1}
c) {x | 0 < x < 1}
d) {x | 0 ≤ x ≤ 1}
