MEDIUM
Stage 1 & 2
IMPORTANT
Earn 100

Cathode rays are produced when a high electric voltage is applied to the gas held in a discharge tube at a pressure of about 

50% studentsanswered this correctly

Important Questions on NTSE (Stage I) Practice Set 2

EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 117
The electronic configuration of chlorine with atomic number 17 is 
MEDIUM
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 118
A divalent cation has 10 electrons and 12 neutrons. The atomic number and mass number of the element is
EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 119
Isotopes differ in the number of 
EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 120
The only element having no neutron is 
MEDIUM
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 121
α-particles are
EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 122
Neutron was discovered by
EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 123
Man-made synthetic fibre is 
EASY
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 2 - NTSE (Stage I) Practice Set 2>NTSE (Stage I) Practice Set 2>Q 124
Which one of the following statements is not correct?