| A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers |
| Dry hydrogen chloride gas does not change the colour of dry litmus paper |
| The most obvious outcome of the reproductive process is the generation of individuals |
| The power of a lens is +4D. Find the focal length of this lens |
| An object of height 10 cm is placed 25 cm away |
| The ability of a medium to refract light is expressed in terms of its optical density |
| Study Mendel’s cross between two plants with a pair of contrasting characters |
| The melting points and boiling points of some ionic compounds |
| Two V - I graphs A and B for series and parallel combinations |
| Why should an ammeter have low resistance |
| How is electric current related to the potential difference |
| What is vegetative propagation |
| Name and explain the two modes of asexual reproduction observed in hydra |
| Write an equation showing saponification |
| What happens when ethanol is heated at 443 K |
| Why is glacial acetic acid called so |
| What happens when a small piece of sodium is dropped |
| Differentiate between saturated and unsaturated carbon compounds |
| How are structure (i) and structure (ii) given below related to one another |
| Draw the structure of the following compounds |
| Why is the separation of the right side and the left side of the heart useful |
| Name the salt formed when sulphuric acid |
| The plants were wilting in a garden and the gardener watered the plants |
| The process of reproduction observed in yeast |
| Write one difference between biodegradable and non-biodegradable |
| For the current carrying solenoid as shown, draw magnetic field lines |
| How does an electric fuse prevent the electric circuit |
| How is the type of current used in household supply different |
| Why is an alternating current (A.C.) considered to be advantageous |
| Define the following terms in the context of a diverging mirror |
| What is double circulation |
| List the role of each of the following in our digestive system |
| How does Paramecium obtain its food |
| Dry HCl gas does not change the colour of dry blue litmus paper |
| Write the molecular formula of ethene and draw its electron dot structure |
| Draw a labelled diagram of the experimental set-up to study the action of steam on a metal |
| Suggest a safe procedure of diluting a strong concentrated acid |
| What is observed when silver chloride is exposed to sunlight |
| While electrolysing water before passing the current some drops of an acid |
| Use of several pesticides which results in excessive accumulation |
| The colour of clear sky from the earth appears blue |
| Identify the defect of vision shown |
| Two green plants are kept separately in oxygen free containers |
| Write one specific function each of the following organs in relation |
| Where are auxins synthesized in a plant |
| Name the part of brain which is responsible for the following actions |
| The industrial process used for the manufacture of caustic soda |
| A student took a small amount of copper oxide in a conical flask |
| An alpha particle enters a uniform magnetic field as shown |
| The resistance of a resistor is reduced to half of its initial value |