Consider the following statements (a) A molecule of sulphur contains 4 sulphur atom (b) Metals placed below hydrogen in activity series lose electrons to H+ ions of acids. (c) Silver acquires a blackish tinge when exposed to for a long time. Which of these statement(s) is/are correct? |
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(a) |
(a) and (b) |
(b) |
(a) and (c) |
|
(c) |
(b) and (c) |
(d) |
Only (c) |
Consider the following statements (a) A molecule of sulphur contains 4 sulphur atom (b) Metals placed below hydrogen in activity series lose electrons to H+ ions of acids. (c) Silver acquires a blackish tinge when exposed to for a long time. Which of these statement(s) is/are correct? |
|
|||
(a) |
(a) and (b) |
(b) |
(a) and (c) |
|
(c) |
(b) and (c) |
(d) |
Only (c) |
Match column-I with column-ll and choose the correct code given below the columns Column – I Column – II A. Electron (p). 1.00867 a.m.u. B. Proton (q). 9.1 x 10-31 kg C. Neutron (r). 1.00728 a.m.u. |
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(a) |
A – (q); B – (r); C – (p) |
(b) |
A – (p); B – (q); C – (r) |
|
(c) |
A – (r); B – (q); C – (p) |
(d) |
A – (q); B – (p); C – (r) |
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