Azot guruhchasi — Nitrat kislota — 8-sinf Kimyo test savollari

1.Nitrat kislotada azot necha valentli va oksidlanish darajasi qanchaga teng?

• A)III valentli, +3
• B)IV valentli, +5
• C)V valentli, +5
• D)II valentli, +2

2.1 mol nitrat kislota bilan 3 mol xlorid kislota aralashmasi nima deb ataladi?

• A)Oleum
• B)Zar suvi
• C)Xlorli suv
• D)Bertole eritmasi

3.Toza nitrat kislota qanday fizik xossalarga ega?

• A)Rangli, hidsiz qattiq modda
• B)Ko'k rangli gaz
• C)Rangsiz, o'tkir hidli suyuqlik
• D)Sariq rangli kristall

4.Nitrat kislota tuzlari nima deb ataladi?

• A)Sulfatlar
• B)Sulfitlar
• C)Xloridlar
• D)Nitratlar

5.Barcha nitratlar suvda qanday eriydi?

• A)Suvda yaxshi eriydi
• B)Suvda umuman erimaydi
• C)Faqat qizdirilgan suvda eriydi
• D)Suvda juda oz eriydi

6.156800 l ammiakdagi modda miqdori $n=V/Vm=\frac{156800}{22}$,4 formulasi bo'yicha nechaga teng bo'ladi?

• A)700 mol
• B)7000 mol
• C)22400 mol
• D)70 mol

7.1 t (1000 kg) 44,982% li eritmadagi nitrat kislotaning massasi va modda miqdori qanday hisoblanadi ($449820\frac{g}{63}$ g/mol)?

• A)449,82 kg, 7140 mol
• B)44,982 kg, 714 mol
• C)1000 kg, 7000 mol
• D)63 kg, 1 mol

8.$N{H}_3$ + $HN{O}_3$ = $N{H}_{4}N{O}_3$ reaksiyasida 7000 mol $N{H}_3$ bilan 7140 mol $HN{O}_3$ reaksiyaga kiritilsa, necha mol $HN{O}_3$ ortib qoladi va necha mol $N{H}_{4}N{O}_3$ hosil bo'ladi?

• A)0 mol ortadi, 7140 mol $N{H}_{4}N{O}_3$ hosil bo'ladi
• B)140 mol ortadi, 7000 mol $N{H}_{4}N{O}_3$ hosil bo'ladi
• C)7000 mol ortadi, 140 mol $N{H}_{4}N{O}_3$ hosil bo'ladi
• D)14140 mol ortadi, 0 mol hosil bo'ladi

9.7000 mol NH4NO3 (M=80 g/mol) ning massasi $m=n\cdot M$ formulasi bo'yicha necha tonnaga teng bo'ladi?

• A)0,56 t
• B)5,6 t
• C)56 t
• D)0,056 t

10.5 t 60% li nitrat kislota tayyorlashda sof HNO3 ning massasi $m=5\cdot 0,6$ formulasi bo'yicha nechaga teng?

• A)5 t
• B)0,6 t
• C)3 t
• D)60 t