Recent questions tagged cbsc

The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?

asked Sep 13, 2017 by meena.p

1 answer

Reaction of any substance with air is called

asked Sep 13, 2017 by meena.p

1 answer

They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?

asked Sep 12, 2017 by priyanka.c

1 answer

Fish breathe with the help of gills which are richly supplied with blood vessels. The gills help the fish to

asked Sep 12, 2017 by priyanka.c

1 answer

Soil conservation measures are mainly aimed at protecting which of the following ?

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following briefly describes the desert climate?

asked Sep 12, 2017 by priyanka.c

1 answer

Cellulose-rich food substances are good source of roughage in human beings because

asked Sep 12, 2017 by priyanka.c

1 answer

The swallowed food moves downwards in the alimentary canal because of

asked Sep 12, 2017 by priyanka.c

1 answer

Pitcher plant traps insects because it

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following is waste water?

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following has the strongest stem?

asked Sep 12, 2017 by priyanka.c

1 answer

Which among the following forest animals is the smallest?

asked Sep 12, 2017 by priyanka.c

1 answer

Almost 95% of compounds are of carbon because it can form

asked Sep 12, 2017 by meena.p

1 answer

Property due to which water acts as a universal solvent is

asked Sep 12, 2017 by meena.p

1 answer

Which of the following does not form an acidic salt?

asked Sep 12, 2017 by meena.p

1 answer

An element belongs to period 2 and group 2 the number of valence electrons in the atoms of this element is.

asked Sep 12, 2017 by meena.p

1 answer

Which of the following serve as green lungs?

asked Sep 12, 2017 by priyanka.c

1 answer

An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that

asked Sep 12, 2017 by meena.p

1 answer

The isotope atoms differ in ?

asked Sep 12, 2017 by meena.p

1 answer

Natural rubber is a polymer derived from ?

asked Sep 12, 2017 by meena.p

1 answer

Sea and oceans are full of water on earth.However, a very small percentage of water present on earth is available for us. This percentage is roughly

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following is not a straight chain hydrocarbon?

asked Sep 12, 2017 by meena.p

1 answer

Which of the following does not show water shortage?

asked Sep 12, 2017 by priyanka.c

1 answer

On moving from left to right in a period in the periodic table, the size of the atom.

asked Sep 12, 2017 by meena.p

1 answer

The following reaction is an example of a $ 4H_3(g)+5O_2(g) \to 4NO+6H_2O$ a. Displacement reaction b. Combination reaction c. Redox reaction d. Neutralisation reaction

asked Sep 12, 2017 by meena.p

1 answer

Which of the following parts of a plant take part in sexual reproduction? i. Flower ii. Seed iii. Fruit iv. Branch Choose the correct answer from below.

asked Sep 12, 2017 by priyanka.c

2 answers

In a tall tree, which force is responsible for pulling water and minerals from the soil?

asked Sep 12, 2017 by priyanka.c

1 answer

What is a mixture of potassium nitrate powdered charcoal and sulphur called?

asked Sep 12, 2017 by meena.p

1 answer

Which of the following gases can be used for storage of fresh sampel of an oil for a long time?

asked Sep 12, 2017 by meena.p

1 answer

The muscular tube through which stored urine is passed out of the body is called -

asked Sep 12, 2017 by priyanka.c

1 answer

During the process of exhalation, the ribs move

asked Sep 12, 2017 by priyanka.c

1 answer

The isomeric pair is

asked Sep 12, 2017 by meena.p

1 answer

Availability of water and minerals in the soil for maximum absorption by roots is in the -

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following is formed when sodium hydroxide reacts with hydrochloric acid?

asked Sep 12, 2017 by meena.p

1 answer

KOH is used in making of

asked Sep 12, 2017 by meena.p

1 answer

Out of the given definitions, which is the most appropriate definition of climate?

asked Sep 12, 2017 by priyanka.c

1 answer

Given below from (i) to (iv) are some food items. (i) Boiled and mashed potato (ii) Glucose solution (iii) A slice of bread (iv) Mustard oil Which of the above will gie blue -black colour when tested with iodine?

asked Sep 12, 2017 by priyanka.c

1 answer

In the absence of which of the following will photosynthesis not occur in leaves?

asked Sep 12, 2017 by priyanka.c

1 answer

Which of the following is not required by plants for food synthesis?

asked Sep 12, 2017 by priyanka.c

1 answer

Which information is not conveyed by a balanced chemical equation?

asked Sep 12, 2017 by meena.p

1 answer

Loss of hydrogen halide from alkyl halide gives

asked Sep 12, 2017 by meena.p

1 answer

Which of the following gives the correct increasing order of the atomic radii of O, F and N?

asked Sep 12, 2017 by meena.p

0 answers

Which of the following is not a decomposition reaction

asked Sep 12, 2017 by meena.p

1 answer

Which of the following gases can be used for storage of fresh sampel of an oil for a long time?

asked Sep 12, 2017 by meena.p

1 answer

An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.

asked Sep 12, 2017 by meena.p

1 answer

Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?

asked Sep 12, 2017 by meena.p

1 answer

Water in swimming pools is purified by adding

asked Sep 12, 2017 by meena.p

1 answer

What is a mixture of potassium nitrate powdered charcoal and sulphur called?

asked Sep 12, 2017 by meena.p

1 answer

The Ph of a solution of HCL is 4. This shows that the molarity of the solution is

asked Sep 12, 2017 by meena.p

1 answer

Soaps are formed by saponification of

asked Sep 12, 2017 by meena.p

1 answer

Ask Questions, Get Answers