Time: 00:00

Question 1 :-

Ice can be changed to water by:


Adding more water molecules


Changing the motion of the water molecules


Rearranging the atoms in water molecules


Destroying the atoms in water molecules

Question 2 :-

The building blocks of elements are called:


Atoms


Molecules


Compounds


Isotopes

Question 3 :-

Boiling of an egg is a change which is:


Physical


Chemical


Physiological


Morphological

Question 4 :-

The temperature of liquid nitrogen is:


-32


-80


-100


-196

Question 5 :-

Which one of the following is an Alkali?


Water


Vinegar    


Lemon Juice


Slaked lame

Question 6 :-

If an alkali is slowly added to an acidic solution, the pH of the acidic solution will:


Increase


Decrease


Increase to 7 and then decrease


Decrease to 7 and then increase

Question 7 :-

The usual raw material for ceramics, generally found beneath the top soil is:


Sand


Slit


Clay


Plaster

Question 8 :-

Polymides are synthetic polymers commonly known as:


Synthetic rubber


Nylon


Cellulose


Protein

Question 9 :-

Chemicals used to kill weed are called as:


Insecticides  


Fungicides  


Herbicides


Fumigants

Question 10 :-

The cytoplasm consists of several types of structures, which are called:


Protoplasm


Nucleus


Cytochromes


Organelles

Question 11 :-

The structure of DNA was elaborated by Watson and Crick in:


1909


1923 


1945


1953

Question 12 :-

Man belongs to the family:


Felidae


Hominidae


Mammalia


Primataceae

Question 13 :-

A man can survive without food for at least:


One month


Two months


Three months


Four months

Question 14 :-

The muscles, tissues and blood all are made up of:


Proteins


Carbohydrates


Vitamins


Fats

Question 15 :-

What does make the blood look red?


Red corpuscles


Hemoglobin


Plasma


None of these

Question 16 :-

Anaemia is because of deficiency of:


Iron


Cholera


Folic Acid


Hemophilia

Question 17 :-

Which one of the following is heredity disease?


Polio


B12


Typhoid


None of these

Question 18 :-

Deficiency of Iron in the human body causes:


Goitre


Trachoma


Anaemia


Glaucoma

Question 19 :-

Disease not related to lung malfunctioning is:


Tuberculosis


Anaema


Pneumonia


Pleurisy

Question 20 :-

In which of the following diseases do the germs enter through open wounds?


Malaria


Tuberculosis


Typhoid


Tetanus

       

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