Top 500 GK Questions 2023-24
General Knowledge
Q.461 pH of blood is
A. 4
B. 6.4
C. 7.4
D. 8
Ans . C
Q.462 Natural rubber is a polymer derived from
A. isoprene
B. ethylene
C. propylene
D. butadiene
Ans . A
Q.463 First atomic theory was proposed by
A. John Dalton
B. E.Rutherford
C. De Broglie
D. D.I.Mendeleef
Ans . A
Q.464 Which substance is obtained by the hydrolysis of oil?
A. ethanol
B. glycol
C. acetic acid
D. glycerol
Ans . D
Q.465 Washing soda is
A. sodium sulphite
B. sodium bicarbonate
C. sodiun carbonate
D. sodium biosulphite
Ans . C
Q.466 Air contains maximum amount of
A. oxygen
B. nitrogen
C. hydrogen
D. carbon dioxide
Ans . B
Q.467 Human bone does not contain
A. calcium
B. carbon
C. oxygen
D. phosphorous
Ans . C
Q.468 Homo nuclear molecules contain
A. polar bond
B. covalent bond
C. ionic bond
D. coordinate bond
Ans . B
Q.469 Which one of the following metals is the best conductor of electricity?
(A) iron
(B) copper
(C) silver
(D) aluminium
Ans . C
Q.470 Which of the following is the lightest metal?
(A) mercury
(B) copper
(C) aluminium
(D) lithium
Ans . D
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