Recent questions tagged cbsc

Herbicides are used to control

asked Aug 17, 2017 by priyanka.c

1 answer

Gram and Linseed are examples of

asked Aug 17, 2017 by priyanka.c

1 answer

A liquid cannot be

asked Aug 16, 2017 by meena.p

1 answer

All matter is made up of tiny discrete particles too small to be seen was hypothesis of

asked Aug 16, 2017 by meena.p

1 answer

Which of the following statements is not correct?

asked Aug 16, 2017 by meena.p

1 answer

Find the natural indicator from the following

asked Aug 16, 2017 by meena.p

1 answer

Neutral solutions which do not change the colour of either red/blue litmus are known as

asked Aug 16, 2017 by meena.p

1 answer

Paper is manufactured by

asked Aug 16, 2017 by meena.p

1 answer

Jatin prepared the following set-ups to 'make rain'. The same amount of water was used for each set-up. Study them carefully to find out which set-up will form the most 'rain'?

asked Aug 16, 2017 by meena.p

0 answers

Water is a good solvent of ionic salts because

asked Aug 16, 2017 by meena.p

1 answer

Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

asked Aug 16, 2017 by meena.p

1 answer

A substance which cannot be broken in to simpler substances further by any chemical reaction is called

asked Aug 16, 2017 by meena.p

1 answer

If both water and carbon dioxide is given to plant still it will not prepare its own food if there is lack of

asked Aug 16, 2017 by meena.p

1 answer

Atomic number of sodium is 11 and its atomic mass is 23, so number of protons and neutrons in an atom of sodium is

asked Aug 16, 2017 by meena.p

1 answer

Smallest particle of Carbon dioxide consists of

asked Aug 16, 2017 by meena.p

1 answer

Which of the following is the best heat insulator

asked Aug 16, 2017 by meena.p

1 answer

The filament of an electric bulb is made of

asked Aug 16, 2017 by meena.p

0 answers

More accurate and quick measure of pH value is done by

asked Aug 16, 2017 by meena.p

1 answer

Nitrogen helps in making of nitrogen based

asked Aug 16, 2017 by meena.p

1 answer

Shreya made a cup of hot tea and put a metal spoon in the cup so that the tea would cool down faster. Which of the following statements best describes the cooling of tea faster?

asked Aug 16, 2017 by meena.p

1 answer

In an atomic nucleus, neutrons and protons are held together by

asked Aug 16, 2017 by meena.p

1 answer

Sodium metal is kept under

asked Aug 16, 2017 by meena.p

1 answer

What is condensation?

asked Aug 16, 2017 by meena.p

1 answer

Which of the following is the best conductor of electricity ?

asked Aug 16, 2017 by meena.p

1 answer

Which of the following gases is lighter than air ?

asked Aug 16, 2017 by meena.p

1 answer

Parmanent hardness of water may be removed by the addition of —

asked Aug 16, 2017 by meena.p

1 answer

Cats eat rats. Rats eat grain. When grain is plentiful, what do you expect to happen?

asked Aug 16, 2017 by meena.p

1 answer

Catalytic properties of a substance may be best defined as a phenomenon of ?

asked Aug 16, 2017 by meena.p

1 answer

Large molecules such as polythene and polystyrene contains

asked Aug 16, 2017 by meena.p

1 answer

Two students of Class VI have performed the same experiment 'Separation of Sugar' by different methods as shown below: Which of the following statements are correct? I. Method I is faster than method 2. II. Method 2 leads to the decomposition of sugar to carbon. III. Method 2 is more appropriate than method I. IV Method 2 is slow but pure sugar is obtamed without getting decomposed.

asked Aug 16, 2017 by meena.p

1 answer

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

asked Aug 16, 2017 by meena.p

0 answers

Potassium nitrate is used in

asked Aug 16, 2017 by meena.p

0 answers

Among the various allotropes of carbon,

asked Aug 14, 2017 by meena.p

1 answer

Modern model of atom shows that electrons are outside nucleus in region of high

asked Aug 14, 2017 by meena.p

1 answer

Match column I with column 11 and select the correct option from the codes given below. Column - I Column - II (a) Clothing material (i) Nylon (b) Twisted fibre (ii) Fabric (c) Synthetic fibre (iii)Yarn (d) Animal fibre (iv) Cotton (e) Plant fibre (v) Silk

asked Aug 14, 2017 by meena.p

1 answer

Reema's mother has done some preparations for her Birthday Party. Which of the folllowing changes can be reversed

asked Aug 14, 2017 by meena.p

1 answer

Lactic acid is found in

asked Aug 14, 2017 by meena.p

1 answer

In an atomic explosion, enormous energy is released which is due to

asked Aug 14, 2017 by meena.p

1 answer

Water is neither acidic nor alkaline because

asked Aug 14, 2017 by meena.p

1 answer

Compared to ionic compounds, covalent bonds have

asked Aug 14, 2017 by meena.p

1 answer

What is laughing gas?

asked Aug 14, 2017 by meena.p

1 answer

Two main requirements to make ammonia are

asked Aug 14, 2017 by meena.p

1 answer

Hypothesis that matter has a continuous composition which can always be broken down into smaller and smaller pieces was given by

asked Aug 14, 2017 by meena.p

1 answer

Which of the following are the ingredients of gun metal?

asked Aug 14, 2017 by meena.p

1 answer

Which of the following are true regarding a catalyst? 1. It is a substance which increases the rate of reaction. 2. It is a substance which reduces the activation energy. 3. It is a substance which increases the activation energy. 4. It is a substance which is consumed in the reaction.

asked Aug 14, 2017 by meena.p

1 answer

If baking soda or fruit salt is mixed with vinegar there takes place a

asked Aug 14, 2017 by meena.p

2 answers

Fog would most likely occur when

asked Aug 14, 2017 by meena.p

1 answer

Sodium becomes a cation because

asked Aug 14, 2017 by meena.p

1 answer

Stars are made up of two most abundant elements in universe namely

asked Aug 14, 2017 by meena.p

1 answer

Permanent hardness of water may be removed by the addition of

asked Aug 14, 2017 by meena.p

1 answer

Ask Questions, Get Answers