Q.1. van-de-Graff generator is used to
(A) produce high voltage alternating current
(B) produce high voltage direct current
(C) measure high voltage A.C.
(D) measure high voltage D.C.
Q.2. An erect and virtual image for any position of the object can be formed by
(A) convex lens (B) convex mirror
(C) concave lens (D) concave mirror
Q.3. Binary form of decimal 896 is
(A) 10110100 (B) 1110000000
(C) 101011101 (D) 11011011
Q.4. The computer bus means
(A) group of wires (B) group of chips
(C) group of devices (D) group of transistors
Q.5. The bell metal is an alloy of
(A) Ni and Cu (B) Zn and Cu
(C) Sn and Cu (D) Sn and Al
Q.6. The structures CH3COCH3 and CH2=CH(OH)CH3 are examples of
(A) Metamerism
(B) Functional group isomerism
(C) Position isomerism
(D) Keto-enol tautomerism
Q.7. Water exists both as solid and liquid at
(A) 1000C (B) 500C
(C) 2.50C (D) 00C
Q.8. Name a metal which reacts reversibly with steam
(A) sodium (B) magnesium
(C) gold (D) iron
Q.9. Osmosis is the diffusion of
(A) water (B) solute particles
(C) gases (D) energy
Q.10. In plants, water rises upwards through
(A) cambium (B) stomata
(C) xylem (D) phloem
ANSWERS
Q.1.(B) Q.2.(B) Q.3.(B) Q.4.(A) Q.5.(C) Q.6.(D) Q.7.(D) Q.8.(B) Q.9.(A) Q.10.(C)
.jpg)