उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

Which state of matter has neither a fixed shape nor a fixed volume?

1. ASolid
2. BCrystal
3. CGas
4. DLiquid

What is a horizontal row of the periodic table called?

1. AA family
2. BA period
3. CA block
4. DA group

What are the building blocks (monomers) of proteins?

1. AFatty acids
2. BNucleotides
3. CSimple sugars
4. DAmino acids

What is a polymer?

1. AA mixture of several different elements
2. BA small molecule containing only two atoms of one element
3. CAn ion with more than one charge
4. DA large molecule built from many repeating smaller units called monomers

कठोर, बंद पात्र में गैस को गर्म करने पर उसके दाब का क्या होता है?

1. Aघटता है
2. Bवही रहता है
3. Cबढ़ता है
4. Dशून्य हो जाता है

What is the oxidation number of sulfur in H₂SO₄?

1. A+6
2. B−2
3. C+2
4. D+4

Starch and cellulose are both made entirely of glucose units, yet humans can digest starch but not cellulose. Why?

1. AThe glucose units are linked differently, and humans lack an enzyme to break cellulose's links
2. BCellulose is really made of amino acids, not glucose, so stomach acid cannot break it
3. CStarch contains nitrogen, which makes it easier to digest
4. DCellulose dissolves in water, so it is lost from the gut

Sulfuric acid reacts with sodium hydroxide: H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. How many moles of NaOH neutralise 0.5 mol of H₂SO₄?

1. A0.5 mol
2. B2 mol
3. C0.25 mol
4. D1 mol