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प्रचलित समस्याएं

रैंक	विषय	समस्या	फॉर्मेट की गई समस्या
1901	शेष	CO_2+Ca(OH)_2→CaC	$C O_{2} + C a {(O H)}_{2} \to C a C$
1902	शेष	CO_2+H_2O→C_6H_12O_6	$C O_{2} + H_{2} O \to C_{6} H_{12} O_{6}$
1903	शेष	CO_2+H_2O=5H_2	$C O_{2} + H_{2} O = 5 H_{2}$
1904	शेष	CoCl_2+Na_2O_2+NaOH+H_2O→Co(OH)_3+NaCl	$C o C l_{2} + N a_{2} O_{2} + N a O H + H_{2} O \to C o {(O H)}_{3} + N a C l$
1905	शेष	LiH→LI+H	$L i H \to L I + H$
1906	शेष	Cr(OH)_3+HNO_2=Cr(NO_3)_3+H_2O	$C r {(O H)}_{3} + H N O_{2} = C r {(N O_{3})}_{3} + H_{2} O$
1907	शेष	K+O_2=K_2O	$K + O_{2} = K_{2} O$
1908	शेष	Cr+n_2→Cr_2n_3	$C r + n_{2} \to C r_{2} n_{3}$
1909	शेष	CrO_4+S_2O_3+H_2O→SO_4+Cr+OH	$C r O_{4} + S_{2} O_{3} + H_{2} O \to S O_{4} + C r + O H$
1910	शेष	Cu(NO_3)_2→CuO+NO_2+O_2	$C u {(N O_{3})}_{2} \to C u O + N O_{2} + O_{2}$
1911	शेष	Cu(NO_3)_2+NaI→CuI	$C u {(N O_{3})}_{2} + N a I \to C u I$
1912	शेष	Cu(OH)_2→CuO+H_2O	$C u {(O H)}_{2} \to C u O + H_{2} O$
1913	शेष	cu→C_2Na	$c u \to C_{2} N a$
1914	शेष	CuCl_2+Na_2CO_3→NaCl+CuCO_3	$C u C l_{2} + N a_{2} C O_{3} \to N a C l + C u C O_{3}$
1915	शेष	CuCl_2+Na_3PO_4→NaCl_3+Cl_3+Cu_4PO	$C u C l_{2} + N a_{3} P O_{4} \to N a C l_{3} + C l_{3} + C u_{4} P O$
1916	शेष	C_3H_8+O_2→H_2O+CO_2	$C_{3} H_{8} + O_{2} \to H_{2} O + C O_{2}$
1917	मोल ज्ञात कीजिये	How many mol of Co(PO_4)F	How many moles of $C o (P O_{4}) F$
1918	शेष	C_4H_10+O_2=CO_2+H_2O	$C_{4} H_{10} + O_{2} = C O_{2} + H_{2} O$
1919	शेष	C_4H_12+O_2→CO_2+H_2O	$C_{4} H_{12} + O_{2} \to C O_{2} + H_{2} O$
1920	शेष	C_4H_9SO+O_2→CO_2+SO_2+H_2O	$C_{4} H_{9} S O + O_{2} \to C O_{2} + S O_{2} + H_{2} O$
1921	शेष	C_5H_10O_2+O_2→CO_2+H_2O	$C_{5} H_{10} O_{2} + O_{2} \to C O_{2} + H_{2} O$
1922	शेष	KBrO_3+KI+H_2SO_4→KBr+I_2+K_2SO_4	$K B r O_{3} + K I + H_{2} S O_{4} \to K B r + I_{2} + K_{2} S O_{4}$
1923	शेष	C_6H_12O_6+6O_2=H_2O+CO_2	$C_{6} H_{12} O_{6} + 6 O_{2} = H_{2} O + C O_{2}$
1924	शेष	C_6H_14+19O_2→12CO_2+H_2O	$C_{6} H_{14} + 19 O_{2} \to 12 C O_{2} + H_{2} O$
1925	शेष	C_6H_16+O_2→CO_2+H_2O	$C_{6} H_{16} + O_{2} \to C O_{2} + H_{2} O$
1926	शेष	C_6H_6O+O_2→CO_2+H_2O	$C_{6} H_{6} O + O_{2} \to C O_{2} + H_{2} O$
1927	शेष	C_7H_6O_2+O_2=CO_2+H_2O	$C_{7} H_{6} O_{2} + O_{2} = C O_{2} + H_{2} O$
1928	शेष	Ca+Na(NO_3)→Na+Ca(NO_3)	$C a + N a (N O_{3}) \to N a + C a (N O_{3})$
1929	शेष	Ca+O_2→CaO	$C a + O_{2} \to C a O$
1930	शेष	Ca+O_2=CaO	$C a + O_{2} = C a O$
1931	शेष	Ca_2→Mg	$C a_{2} \to M g$
1932	शेष	Ca_3P_2O_2+H_2SO_4→CaSO_4+CaH_4P_2O_8	$C a_{3} P_{2} O_{2} + H_{2} S O_{4} \to C a S O_{4} + C a H_{4} P_{2} O_{8}$
1933	शेष	CaCl_2+Cs_3PO_4→CaPO_4+3csc(l_2)	$C a C l_{2} + C s_{3} P O_{4} \to C a P O_{4} + 3 C s C l_{2}$
1934	शेष	CaCl_2+kl→cai+kcl_2	$C a C l_{2} + k l \to c a i + k c l_{2}$
1935	शेष	n_2+3h_2→2nxhy	$n_{2} + 3 h_{2} \to 2 n x h y$
1936	शेष	CaCO_3+CaO→CO_2	$C a C O_{3} + C a O \to C O_{2}$
1937	शेष	CaCo_3+2HCl=CaCl_2+H_2O+CO_2	$C a C o_{3} + 2 H C l = C a C l_{2} + H_{2} O + C O_{2}$
1938	शेष	CaCO_3+HC_2H_3O_2→Ca(C_2H_3O_2)_2+H_2O+CO_2	$C a C O_{3} + H C_{2} H_{3} O_{2} \to C a {(C_{2} H_{3} O_{2})}_{2} + H_{2} O + C O_{2}$
1939	शेष	CaCo_3S+2HCl→CaCl_2+2HO(I)	$C a C o_{3} S + 2 H C l \to C a C l_{2} + 2 H O (I)$
1940	शेष	CaCo_3S+2HCl→CaCl_2+HO	$C a C o_{3} S + 2 H C l \to C a C l_{2} + H O$
1941	शेष	CaF_2+Li_2SO_4=CaSO_4+LiF	$C a F_{2} + L i_{2} S O_{4} = C a S O_{4} + L i F$
1942	शेष	CaHP=H_2Ca_3+P	$C a H P = H_{2} C a_{3} + P$
1943	शेष	CaOH→Ca+OH	$C a O H \to C a + O H$
1944	शेष	CaSO_4+AlBr_3→CaBr_2+Al_2(SO_4)_3	$C a S O_{4} + A l B r_{3} \to C a B r_{2} + A l_{2} {(S O_{4})}_{3}$
1945	शेष	CH_4+O_2→CH_2+H_2O	$C H_{4} + O_{2} \to C H_{2} + H_{2} O$
1946	आवश्यक द्रव्यमान ज्ञात कीजिये	What (mass)(of)(live)(steam)(at)(100C)(is)(needed)(to)(heat)(39g)(of)(water)(from)(45 डिग्री C)(to)(65 डिग्री C)	What $(m a s s) (o f) (l i v e) (s t e a m) (a t) (100 C) (i s) (n e e d e d) (t o) (h e a t) (39 g) (o f) (w a t e r) (f r o m) (45 ° C) (t o) (65 ° C)$
1947	शेष	CH_4+O_2=CO_2+H_2O	$C H_{4} + O_{2} = C O_{2} + H_{2} O$
1948	शेष	CH_3+8O_2→5CO_2+6H_2O	$C H_{3} + 8 O_{2} \to 5 C O_{2} + 6 H_{2} O$
1949	शेष	CH_4+H_2O→CO+3H_2	$C H_{4} + H_{2} O \to C O + 3 H_{2}$
1950	शेष	Cl_2+H_2O→HCl+HClO_3	$C l_{2} + H_{2} O \to H C l + H C l O_{3}$
1951	शेष	y)=( का 2( लघुगणक बेस 3 4)+( का लघुगणक बेस 3 y+8) का लघुगणक बेस 3	$2 (\log_{3} (y)) = (\log_{3} (4)) + (\log_{3} (y + 8))$
1952	शेष	Cl_2+2NaI→I_2+2NaCl How man	$C l_{2} + 2 N a I \to I_{2} + 2 N a C l$ How man
1953	शेष	cl_2+h_2o→h+cl	$c l_{2} + h_{2} o \to h + c l$
1954	शेष	AI+FeO=AI_2O_3+Fe	$A I + F e O = A I_{2} O_{3} + F e$
1955	शेष	Al→Na	$A l \to N a$
1956	शेष	Al_2+H_2O→Al(OH)_2+H_2S	$A l_{2} + H_{2} O \to A l {(O H)}_{2} + H_{2} S$
1957	शेष	Al+CuSO_4→Cu+Al(SO_4)_3	$A l + C u S O_{4} \to C u + A l {(S O_{4})}_{3}$
1958	शेष	Al+FeO→Al_2O_3+Fe	$A l + F e O \to A l_{2} O_{3} + F e$
1959	शेष	Al+H_3PO_4→AlPO_4+H_2	$A l + H_{3} P O_{4} \to A l P O_{4} + H_{2}$
1960	शेष	C_2H_6O+KMnO_4+H_2SO_4→C_2H_4O_2+MnSO_4+K_2SO_4+H_2O	$C_{2} H_{6} O + K M n O_{4} + H_{2} S O_{4} \to C_{2} H_{4} O_{2} + M n S O_{4} + K_{2} S O_{4} + H_{2} O$
1961	शेष	C_2H_6O+O_2→CO_2+H_2O	$C_{2} H_{6} O + O_{2} \to C O_{2} + H_{2} O$
1962	शेष	N_2H_4→NH_3+N_2	$N_{2} H_{4} \to N H_{3} + N_{2}$
1963	शेष	C_3H_8+N_2O_3→CO_2+H_2O+NO	$C_{3} H_{8} + N_{2} O_{3} \to C O_{2} + H_{2} O + N O$
1964	सान्द्रता ज्ञात कीजिये	massin(g)*0.150(mol)(sucrose)	massin $(g) \cdot 0.15 (m o l e s) (s u c r o s e)$
1965	शेष	c_2h_6+o_2→h_2o+co_2	$c_{2} h_{6} + o_{2} \to h_{2} o + c o_{2}$
1966	सान्द्रता ज्ञात कीजिये	massin(g)*0.105(mol)(sucrose)	massin $(g) \cdot 0.105 (m o l e s) (s u c r o s e)$
1967	शेष	Mg+2HCl→MgCl_2+H	$M g + 2 H C l \to M g C l_{2} + H$
1968	शेष	C+H_2O→CO+H_2	$C + H_{2} O \to C O + H_{2}$
1969	शेष	C+H_2+O_2=H_2O	$C + H_{2} + O_{2} = H_{2} O$
1970	शेष	c+h_4→c_2+h_6	$c + h_{4} \to c_{2} + h_{6}$
1971	शेष	C+O+Zn→CO_2+ZnO	$C + O + Z n \to C O_{2} + Z n O$
1972	शेष	C+SO_2→CS_2+CO	$C + S O_{2} \to C S_{2} + C O$
1973	शेष	Fe(OH)_2+NaNO_3→FeO_3H_3+NaNO_2	$F e {(O H)}_{2} + N a N O_{3} \to F e O_{3} H_{3} + N a N O_{2}$
1974	शेष	C_10H_16+Cl_2→C+HCl	$C_{10} H_{16} + C l_{2} \to C + H C l$
1975	शेष	H_2+Cl_2=HCl	$H_{2} + C l_{2} = H C l$
1976	शेष	C_10H_8+n_2→Cn_2+H_2n	$C_{10} H_{8} + n_{2} \to C n_{2} + H_{2} n$
1977	शेष	C_12H_22O_11+H_2SO_4+O_2→C+CO_2+H_2O+SO_2	$C_{12} H_{22} O_{11} + H_{2} S O_{4} + O_{2} \to C + C O_{2} + H_{2} O + S O_{2}$
1978	शेष	C_2+H_2+O_2=H_2O+CO_2	$C_{2} + H_{2} + O_{2} = H_{2} O + C O_{2}$
1979	शेष	C_2H_3+8O_2→5CO_2+6H_2O	$C_{2} H_{3} + 8 O_{2} \to 5 C O_{2} + 6 H_{2} O$
1980	शेष	C_2H_4+O_2→CO_2+H_2O	$C_{2} H_{4} + O_{2} \to C O_{2} + H_{2} O$
1981	शेष	C_2H_4n_2+n_2→Cn_2+H_2n	$C_{2} H_{4} n_{2} + n_{2} \to C n_{2} + H_{2} n$
1982	शेष	c_2h_5oh→h_2o+co_2	$c_{2} h_{5} o h \to h_{2} o + c o_{2}$
1983	शेष	C_2H_5OH+O_2→HO+2CO_2	$C_{2} H_{5} O H + O_{2} \to H O + 2 C O_{2}$
1984	शेष	H_2+Cl_2→2HCl	$H_{2} + C l_{2} \to 2 H C l$
1985	शेष	H_2S+HNO_3→S+NO+H_2O	$H_{2} S + H N O_{3} \to S + N O + H_{2} O$
1986	शेष	H_2SO_4+KOH→H_2O+K_2SO_4	$H_{2} S O_{4} + K O H \to H_{2} O + K_{2} S O_{4}$
1987	शेष	HCl+H_2O→HCL+H_2O	$H C l + H_{2} O \to H C L + H_{2} O$
1988	शेष	C+Fe_2O_3→Fe+Co	$C + F e_{2} O_{3} \to F e + C o$
1989	शेष	CH_4+Br_2→CH_3	$C H_{4} + B r_{2} \to C H_{3}$
1990	शेष	CO+O→CO_2	$C O + O \to C O_{2}$
1991	शेष	CaCO_3+2HCl→CaCl_2+Co_2+H_2O	$C a C O_{3} + 2 H C l \to C a C l_{2} + C o_{2} + H_{2} O$
1992	शेष	co_2+h_2*0→c_6h_12o_6+o_2	$c o_{2} + h_{2} \cdot 0 \to c_{6} h_{12} o_{6} + o_{2}$
1993	शेष	co_2→c+o_2	$c o_{2} \to c + o_{2}$
1994	शेष	construct a truth table for (pvq)→r	construct a truth table for $(p v q) \to r$
1995	शेष	AlOH_3+H_2SO_4=Al_2SO_4+H_2O	$A l O H_{3} + H_{2} S O_{4} = A l_{2} S O_{4} + H_{2} O$
1996	शेष	C_6H_12O_2+O_2→CO_2+H_2O	$C_{6} H_{12} O_{2} + O_{2} \to C O_{2} + H_{2} O$
1997	शेष	Br+KI→KBr+I	$B r + K I \to K B r + I$
1998	शेष	4K(s)+O_2(g)→2K_2O(s)	$4 K (s) + O_{2} (g) \to 2 K_{2} O (s)$
1999	शेष	AgNO_3+Cu→Cu(NO_3)_2+Ag	$A g N O_{3} + C u \to C u {(N O_{3})}_{2} + A g$
2000	शेष	Ag(NH_3)_2OH+C_6H_12O_6→Ag+H_2O+C_6H_12O_5+NH_4	$A g {(N H_{3})}_{2} O H + C_{6} H_{12} O_{6} \to A g + H_{2} O + C_{6} H_{12} O_{5} + N H_{4}$