The balanced reaction for following chemical reaction is:
Barium sulphate + Aluminium chloride → Barium chloride + Aluminium sulphate
Which of the following is not the use of bleaching powder?
(i) to make drinking water free from germs
(ii) in soda-acid fire extinguishers
(iii) as an oxidising agent in many chemical industries
(iv) for baking cakes
Which of the following situations is/are possible?
(a) Magnetic field lines can be parallel to each other.
(b) Magnetic field lines can be concentric circles.
(c) Magnetic field lines can intersect each other.
A statement is given followed by two assumptions numbered I and II. You have to assume everything in the statement to be true and decide which of the given assumptions is/are implicit in the statement.
Statement:
The demand for smartphones and laptops has increased substantially since the introduction of online classes in schools.
Assumptions:
I. People are buying smartphones and laptops to enable their children to attend online classes
II. Desktop computers cannot be used to attend online classes.
A Student focuses a sharp image of sun using a spherical mirror on a sheet of paper, which starts to burn after some time. Which of the following statement/statements about the mirror is/are correct?
a) It is concave spherical mirror
b) It is positive focal length
c)It is a converging mirror
What will come in the place of A and B, respectively in the given double displacement reaction?
A+B -----> AgBr + KNO_3
The statement below is followed by three conclusions labelled I, II and III. You have to assume everything in the statement to be true, and then decide which of the three suggested conclusions logically follows for pursuing.
Statements:
1) No school is an institution but they are establishment.
2) All establishments that are not institutions have buildings.
Conclusions:
I. Schools are not establishments.
II. All schools have buildings.
III. Schools do not have buildings.
Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.
Statements:
All scientists working in Japan are talented.
Some Chinese scientists are working in Japan.
Conclusions:
I. No Chinese scientist is talented.
II. Some talented Chinese scientists are working in Japan.
III. All talented scientists are Japanese.
IV. Some Chinese scientists are talented.
Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) from the statement(s)
A job advertisement states: “Suitable candidates with maximum age of 30 years can apply.”
Conclusions:
I. No candidate who is more than 30 years old can apply
II. The company is specific about the age group of candidates.