The best representative of the acid igneous rocks is : [IAS 2003]

Related MCQs

• Consider the following statements: 1. Igneous rocks are classified into Extrusive and Intrusive rocks. 2. Sedimentary rocks are also called as Primary rocks 3. Marble is an example of Metamorphic rocks 4. Coal is a sedimentary rock Which of the above statements is/are correct? [NDA 2002]
• Which of the following are true with respect to sedimentary rocks? 1. The rocks are deposited in layers 2. The particles of rocks are at times wholly of organic nature 3. The rocks are not crystalline 4. Their structure is determined by great pressure or heat
• Igneous rocks are formed from molten rock material. Which one of the following is not an igneous rock?
• The type of igneous rocks which are formed midway between volcanic and plutonic rocks, are known as :
• Which of the following is/are the examples of the sedimentary rocks? [IAS 2003] 1. Limestone 2. Dolomite 3. Breccia 4. Coal
• Igneous rocks are said to be acidic when they contain high proportion of:
• Which of the following are true with regard to igneous rocks? 1. They are formed inside the earth, under great pressure 2. They do not occur in layer 3. They are mostly crystalline in nature 4. They contain fossils
• The igneous rocks are formed due to : [CDS 1992]
• Consider the following statements: 1. The acid lava usually melts at a relatively higher temperature as compared to basic (basaltic) lava. 2. The acid lava solidifies into glass-like sheets and the basaltic lava solidifies into rough surfaces. Which of the statements given above is/are correct? [IAS 2007]
• Carbonaceous rocks which produce coal and of belong to the category of rocks called