Recent questions tagged t1

An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?

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When a metal replaces hydrogen atom then compound form is

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When copper oxide is heated with hydrogen, copper metal and water are formed. Which of the following is oxidising agent in this reaction?

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Chemical fertilizers, insecticides, pesticides are

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Living things and the environment together constitute the

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Young ones of their own kind are produced by

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In unicellular organisms, transpiration of materials takes place through

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When we exhale, the ribs

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Energy is released in the body by

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Soil contains

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If the relative humidity on a particular day is 98 per cent and the temperature falls suddenly, there are chances that the day would be

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Coolest time of the day is

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Which of the following teeth have similar functions?

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The salivary glands convert

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In which organ does digestion does not take place?

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Which of the following is an insectivorous plant?

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The green pigment found in the leaves of the plant is

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Organisms need food to

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a. Oxygen: diatomic b. Ozone :_______

asked Aug 29, 2017 by meena.p

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What is the formula for a gas at room temperature?

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In Rutherford's experiment, α particles were deflected because of

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The number of valence electrons determines:

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An element X has valency equal to 3. What will be its formula with carbonate ions?

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Fog is a solution of

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On industrial scale sodium metal is prepared by electrolysis of fused

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At constant pressure average kinetic energy of gas molecules increases 2 times if

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Shielding effect across period

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A student weighs $30\;kg$. Suppose his body is entirely made of electrons. How any electrons are there in his body? Mass of an electron$= 9.1 \times 10^{-31}\;kg$

asked Aug 29, 2017 by meena.p

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Filtration as a method of separation can be used for mixtures that are

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A chemistry poster indicated information on the number of particles in a newly discovered atom. According to the information in the poster the atomic number is: Protons: 113 Electrons: 113 Neutrons: 281

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When a bottle of soda water is opened, carbon dioxide escapes, producing a fizz. This is due to:

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Which of the following has minimum spaces among the particles

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On contact with oxygen, Rubidium forms

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The pair of *** chromosomes found in the human female is

asked Aug 18, 2017 by priyanka.c

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The belief that mother is responsible for the birth of a girl child is wrong because the child

asked Aug 18, 2017 by priyanka.c

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Which of the following property is not responsible for copper to be used as electrical conduction wires?

asked Aug 18, 2017 by meena.p

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Binni wishes to contribute in reducing air pollution . Which vehicle should he use for going to school.

asked Aug 18, 2017 by meena.p

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A flame always points upwards because

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Internal fertilization occurs

asked Aug 18, 2017 by priyanka.c

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The presence of which of the following salts in water causes corrosion in steam boilers ?

asked Aug 18, 2017 by meena.p

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Which of the following will work best as a tester for electric current?

asked Aug 18, 2017 by meena.p

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Firewood is generally used as fuel in which of the following?

asked Aug 18, 2017 by meena.p

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Polywool is a mixture of which substances?

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Which scientist was the first to show electrolysis of water?

asked Aug 18, 2017 by meena.p

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Which of the following is a good conductor of electricity?

asked Aug 18, 2017 by meena.p

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Which of the following is not true?

asked Aug 18, 2017 by meena.p

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When a glass rod is rubbed with a piece of silk cloth

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Which of the following has highest calorific value?

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Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resources?

asked Aug 18, 2017 by meena.p

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Reproduction resulting from the fusion of the male and female gamete is called

asked Aug 18, 2017 by priyanka.c

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