उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

What should a student always wear to protect the eyes when working with chemicals?

1. AContact lenses
2. BSafety goggles
3. CSunglasses
4. DReading glasses

आवर्त सारणी के ऊर्ध्वाधर स्तंभ को क्या कहते हैं?

1. Aश्रेणी
2. Bकोश
3. Cसमूह
4. Dआवर्त

What is the formula of sulfuric acid?

1. AHCl
2. BH₂SO₄
3. CHNO₃
4. DH₂SO₃

Which gas forms when hydrochloric acid reacts with calcium carbonate?

1. AChlorine
2. BHydrogen
3. COxygen
4. DCarbon dioxide

अणुगति सिद्धांत के अनुसार तापमान क्या मापता है?

1. Aकणों की कुल संख्या
2. Bपात्र का आकार
3. Cकणों की औसत गतिज ऊर्जा
4. Dप्रत्येक कण का द्रव्यमान

When diluting a concentrated acid, which method is safe?

1. AAdd the acid slowly to the water
2. BMix them in any order, as long as it is fast
3. CAdd the water quickly to the acid
4. DAdd the water slowly to the acid

कौन-सा आबंध सबसे अधिक ध्रुवीय है?

1. ACl–Cl
2. BC–H
3. CH–H
4. DH–F

Orange bromine water is shaken with two hydrocarbons. With hexene it turns colourless; with hexane it stays orange. What does this show?

1. AHexene is an alcohol and hexane is an acid
2. BHexane contains a C=C double bond; hexene does not
3. CBoth contain double bonds, but hexane reacts more slowly
4. DHexene contains a C=C double bond; hexane does not