MEDIUM
RRB JE CBT 1
IMPORTANT
Earn 100

Which gas is released when bleaching powder is added to water?

42.86% studentsanswered this correctly

Important Questions on Practice Set

EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 67
Brajen can paint a wall red in 10 hours while Ballari can paint  the wall completely in 12 hours. If Brajen and Ballari work alternately for an hour, each starting when the wall has just cement on it till when it is completely painted red, how many hours will it take to paint the entire wall red?
MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 68
An object is placed 30 cm before a concave mirror of the focal length of 20 cm to get a real image. What will be the distance of the image from the mirror?
MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 70
What is the molecular formula of Calcium Phosphate?
EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 71
Pipe A can fill an empty cistern in 6 hours while along with pipe B it can fill it up in 4 hours. Only pipe B is on for an hour after which pipe A is also turned on. How much time will it take in all to fill up the cistern?
EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 72

The given figures depict the country-wise and age-wise distribution of the people who visited China for business setup.
Question ImageQuestion Image

If in a given year, 500,000 people visited China, then the number of British nationals in the age group between 20 and 40 years who visited China is:

EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 73
Who among the following is India's left-arm spinner who is the lone cricketer to feature in both, the ODI and T 20 teams of the year announced by the ICC? 
EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 74

All the members of a homologous series can be represented by the same general formula.

Choose the INCORRECT formula among the following.

Alkane-CnH2n+2

Alkene-CnH2n+1

Alkyne-CnH2n-2

EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-5>Q 75
Which of the following number is composite?