UGC NET Paper 2 — Chemistry
23 questions across 3 years
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Given below are two statements: Statement (I): The absence of fluoride in drinking water causes tooth decay. Statement (II) : Absence of fluoride in drinking water causes mottling...
Which of the following are true about pure rain water? A. It is naturally acidic B. It is naturally basic C. It is neutral (neither acidic nor basic) D. It's pH value is 7 E. It is...
Which of the following are true about pure rain water? A. It is naturally acidic B. It is naturally basic C. It is neutral (neither acidic nor basic) D. It's pH value is 7 E. It is...
Which of the following statements are true regarding hardness in water? (A) It is caused by calcium and magnesium ions. (B) It is of two types - temporary and permanent. (C) Perman...
Match the LIST-I with LIST-II LIST-I (Disinfectant byproducts (DBPs) of Chlorine) A. Dibromochloromethane B. Bromoform C. Bromodichloromethane D. Chloro form LIST-II (Chemical Comp...
Match the LIST-I with LIST-II LIST-I (Disinfectant byproducts (DBPs) of Chlorine) A. Dibromochloromethane B. Bromoform C. Bromodichloromethane D. Chloro form LIST-II (Chemical Comp...
Match the LIST-I with LIST-II LIST-I (Disinfectant byproducts (DBPs) of Chlorine) A. Dibromochloromethane B. Bromoform C. Bromodichloromethane D. Chloro form LIST-II (Chemical Comp...
Match the LIST-I with LIST-II LIST-I A. Dichlorvos B. Melathion C. Parathion D. Lindane LIST-II I. Type A organophosphate insecticide II. Type B organophosphate insecticide III. Ty...
Arrange the following carbonaceous fuels in increasing order of their atomic H/C values A. Petroleum B. Peat C. Methane D. Lignite E. Anthracite Choose the correct answer from the...
The biogas is a mixture of
Match the LIST-I with LIST-II LIST-I Dye Class A. Reactive Dyes B. Disperse Dyes C. Azoic Dyes D. Vat Dyes LIST-II Characteristic I. High Temperature High Pressure Dying II. Leuco...
Match List-I with List-II: List-I Dye Class A. Reactive Dyes B. Disperse Dyes C. Azoic Dyes D. Vat Dyes Choose the correct option from the alternatives given below:
निम्नलिखित में से कौन-कौन से घटक तलने-भूनने में प्रयुक्त किए जाने वाली वसा/तेलों में बनते हैं? A. फ्री फैटी ऐसिड्स B. मेलार्ड तत्व/पदार्थ C. मोनो और डिईग्लीसिराईडस् D. कन्जुगेटेड ड...
नीचे दो कथन दिए गए हैं: एक अभिकथन (Assertion A) के रूप में है तो दूसरा उसके कारण (Reason R) के रूप में: अभिकथन A: सूती कपड़े के रंजन में सोडियम क्लोराइड को इग्ज़ोस्टिंग एजेन्ट के ए...
Groundwater is specially prone to excessive hardness due to.
When the monomers join end-to-end and liberate by a product it is :
Arrange the steps in the manufacture of Cellulose Xanthate solution. (A) Ripening of viscose and filtration for the removal of foreign particles (B) Deaeration (C) Reaction with ca...
_______ are colourless compounds which during processing and handling such as heating in an acid solution are converted into coloured compounds.
Match List - I with List - II. List - I Fibres A. Cotton B. Wool C. Acetate D. Nylon List-II Burning Characteristics I. Slow flickering, curls, burning hair odour, crisp dark ash I...
निम्नलिखित तत्वों में से कौन-सा विखंडनीय है?
Which of the following statements are true about hardness in water ? (A) It is caused by ions of calcium and magnesium (B) It is of two types-temporary and permanent (C) Permanent...
Match List - I with List - II. List - I Chemical Compound (A) Sodium nitrite (B) Calcium silicate (C) Gelatin (D) Benzoic acid List - II Purpose (I) Thickeners (II) Preservative (I...
Examples of condensation polymerization are : (A) Acrylic (B) Modacrylic (C) Nylon (D) Elastomers (E) Polyester Choose the correct answer from the options given below :