उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

Which functional group is found in all alcohols?

1. ACarboxyl group (–COOH)
2. BAmino group (–NH₂)
3. CCarbonyl group (C=O) only
4. DHydroxyl group (–OH)

What is the SI unit of temperature?

1. AKelvin
2. BDegree Fahrenheit
3. CDegree Celsius
4. DJoule

Where are the transition metals located on the periodic table?

1. AIn group 18 on the far right
2. BIn group 1 on the far left
3. CIn the central block, groups 3 to 12
4. DAbove the noble gases

Which is larger, a sodium atom (Na) or a sodium ion (Na⁺)?

1. AThey are the same size
2. BThe sodium atom
3. CThe sodium ion
4. DIt depends on the temperature

What is the name of the compound CaCO₃?

1. ACarbon calcium trioxide
2. BCalcium carbonate
3. CCalcium oxide
4. DCalcium carbide

What feature makes a hydrocarbon an alkene?

1. AOnly carbon–carbon single bonds
2. BAt least one carbon–carbon double bond
3. CA ring of six carbon atoms with no hydrogen
4. DAn –OH group

Carbon-14 (atomic number 6) decays by emitting a beta particle. What does it become?

1. ACarbon-13
2. BBoron-14
3. CNitrogen-14
4. DNitrogen-15

Water is split as 2H₂O → 2H₂ + O₂. What volume of O₂ at STP (0 °C and 1 atm) forms from 2 mol of water?

1. A67.2 L
2. B11.2 L
3. C22.4 L
4. D44.8 L