An alkaline earth metal M forms covalent compounds. It forms water soluble sulphate MSO4 and water insoluble hydroride M(OH)2 which is a amphoteric in nature. The metal M is
Consider the following statements:
I. Diamond is bad conductor of electricity
II. Graphite is used for making electrodes of electric furnaces.
III. Solid carbon monoxide is known as dry ice
IV. Carbondioxide turns moist red litmus slightly bluish.
Which of the above statement(s) is/are correct?
Match List I with List II correctly and select your answer using the codes given below:
| List I (Ores) | List II (Metals) |
| a) Haematite | 1.) Lead |
| b) Cinnabar | 2.) Iron |
| c) Calamine | 3.) Mercury |
| d) Galena | 4.) Zinc |
Which one of the following is/are correctly matched?
(i) Arteritis - inflammation of artery
(ii) Occlusion - Closure of blood vessel
(iii) Thrombectomy - Removal of blood clot from a blood vessel
All the three are correct
Only (i) is correct
Only (ii) is correct
Only (iii) is correct
Assertion (A) : On rainy day small oil film on water show brilliant colours.
Reason (R) : This is due to polarization of light.
Both (A) and (R) are individually true and (R) is the correct explanation of (A)
Both (A) and (R) are individually true and (R) is not the correct explanation of (A)
(A) is true but (R) is false
(A) is false but (R) is true
A particle motion is given by distance - time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point.
Match List I with List II correctly and select your answer using the codes given below:
| List I (Culture Realms) | List II (Culture Areas) |
| a) The occidental | 1.) Korea |
| b) The main Islamic | 2.) Anglo-America |
| c) The Indic | 3.) Jordan |
| d) East Asia | 4.) Nepal |
