X
Email me Daily Riddles
Question:- Which of the following is estimated by the radio carbon dating? A. Age of the human being B. Age of the fossils C. Disease of the human body D. Purity of the metals
Answer:- B
Question:- The number of isotopes in the hydrogen: A. 2 B. 3 C. 4 D. 5
Answer:- B
Question:- Which of the following is not the isotope of hydrogen? A. Protium B. Deuterium C. Iterium D. Tritium
Answer:- C
Question:- Which of the following is not the isotope of hydrogen? A. Protium B. Deuterium C. Iterium D. Tritium
Answer:- C
Question:- 8O16, 8O17, 8O18 are called: A. Isotopes B. Isotones C. Isobars D. Isoneutrons
Answer:- A
Question:- What is the radioactive isotope of hydrogen is called? A. Deuterium B. Rotium C. Radium D. Tritium
Answer:- D
Question:- Which isotope is used through the radioactive age estimation technique to obtain (determine) the age of rocks? A. Uranium isotope B. Plutonium isotope C. Thorium isotope D. Carbon isotope
Answer:- A
Question:- The radio isotope used to control the disease like blood cancer (Leukaemia) is: A. Phosphorus-32 B. Cobalt-60 C. Iodine-131 D. Sodium-24
Answer:- B
Question:- Isotones are those which have: A. Equal number of protons B. Equal number of neutrons C. Equal number of nucleons D. None of these
Answer:- B
Question:- The iso electronic of AI+3 is: A. CI- B. AI C. S- D. F-
Answer:- D
Question:- The element which has same mass number but different atomic number is called: A. Isotope B. Isobar C. Isoneutronic D. Isoelectronic
Answer:- B
Question:- By the emission of which isomers are produced: A. Alpha-ray B. Beta-ray C. Gama-ray D. X-ray
Answer:- B
Question:- How many molecules have the methane? A. Double bond B. Triple bond C. Single covalent bond D. None of these
Answer:- C
Question:- What is the shape of the ethylene molecule? A. Linear B. Tetrahedral C. Coplanar triangular D. Hectohedral
Answer:- C