Question

1) Select the correct answer from the alternatives 1×10=10
(i) The unit of electric current is
(a) Ampere (b) Volt (c) coulomb (d) None
(ii) The unit of resistivity is
Ohm (b) Volt (c) Ampere (d) Ohm-cm
(iii) The example of electrical energy into light energy
Electric bulb (b)Moter (c) Light (d) None
(iv) According to Ohm’s law which statement is true
(a) VαI (b) VαR (c) HαR (d) None
(v) When glass rod is rubbed with fur, the glass is charged-
(a) Positive charge (b) Negative charge (c) No charge.
(vi) Normal body temperature of a man is
(a) 940 F (b) 36.90 C (c) 1000 F (d) None
(vii) One calorie equal to
(a) 4.02 joule (b) 4.2 Joule (c) 4.21 Joule (d) none
(viii) NaOH is a
(a) Base (b) Acid (c) Salt (d) None
(ix) Na2SO4 is a
(a) Normal Salt (b) Base (c) Acid (d) None
(x) CO2 dissolve in water to form ………… acid
(a) H2S04 (b) H2CO3 (c) HCl (d) None
2. Fill in the blank 1×10=10
(i) In the nature diamond is found in ……………………. Rock
(ii) ……………………. Is used to distinguish between glass and diamond
(iii) When blue litmus is added to an aqueous solution of ……………………. acid the colour of the litmus
Is changed to red
(iv) The compound formed by the replacement of hydrogen of an acid by metal is called a……………….
(v) HNO3 is rich in oxygen so it is an ……………………
(vi) Slaked lime is a…………………. solid obtained by adding water to lime
(vii Heat reaches the earth from the sun by ……………. Process
(viii) There is no attracting power near the middle portion of a magnet that region of the magnet is called …………………
(ix) statical electricity is also called ……………… electricity.
(x) Masses of neutron and ……………… are almost equal.​

Answer 1

Answer:

OMG

Explanation:

getting headache by seeing this question !