XI Chemistry Mcqs
Atomic Structure – Chapter # 03 – Test 05
- Question 1 of 101. The emission of a β- particle from the nucleus raises the positive charge by:
Right Answer! Good
Wrong Answer Correct Answer is : One
- Question 2 of 102. Which of the following has maximum electro negativity:
Right Answer! Good
Wrong Answer Correct Answer is : correctAnswerPaste
- Question 3 of 103. The particle whose mass is equal to that of electron but bears a unit positive charge is known as:
Right Answer! Good
Wrong Answer Correct Answer is : Positrons
- Question 4 of 104. Which is the true order of electro negativity:
Right Answer! Good
Wrong Answer Correct Answer is : F>C1>Br>I
- Question 5 of 105. Consider the nuclear reaction, 13Al27+2He4 → 0n1+X, where X represents:
Right Answer! Good
Wrong Answer Correct Answer is : I5P30
- Question 6 of 106. The atomic mass of an element is 59 and its atomic number is 27. The number of neutrons contained in the nucleus will be:
Right Answer! Good
Wrong Answer Correct Answer is : 32
- Question 7 of 107. When a stable element is bombarded with α -particle its radiation. This is known as:
Right Answer! Good
Wrong Answer Correct Answer is : Artificial radioactivity
- Question 8 of 108. The rays which can be used as projectiles for ionizing gaseous molecules are called:
Right Answer! Good
Wrong Answer Correct Answer is : α-rays
- Question 9 of 109. When cathode rays were passed through an electric field:
Right Answer! Good
Wrong Answer Correct Answer is : They were deflected to the positively charged plate
- Question 10 of 1010. The energy of atomic orbital in a given shell increases in the order:
Right Answer! Good
Wrong Answer Correct Answer is : s p d f